Car Dock Speaker Phone issue... - Nexus One Accessories

Is anyone else struggling with the car dock and the speakerphone fuction not being on?
I keep setting it to remeber my settings and to have both music and phone going through the dock but when I get back in the car it only has music checked so when I answer a call it doesn't use the bluetooth to the dock
Any ideas on how to get this to work everytime? Could it be something I loaded into the phone? I have been deleting all my programs to see if that helps but nothing yet.
I am unrooted normal os...

A little sporadic for me too. Although for the most part it works. What do you mean when you say "when I get back in the car"? Do you mean you:
1) Get in your car, start car and drive off, all the time with the N1 never leaving the dock.
2) Get in your car, start car, place phone it car dock...
3) Get in your car, place phone it car dock, start car....
I know it sounds pedantic but I suspect the method you use can effect how things end up. Especially considering how the power to the Car Dock usually is interrupted during ENG start. Furthermore I am not sure if the phone can or does sense that it has been placed in the car dock if the actual docking happens before you turn the IGN on. This is only speculative though.
So what I tend to do is method 2. I start my car first, to ensure power is going to the cradle during docking AND wont be interrupted. Then place the phone into the cradle. This seems to work all the time for me resulting in phone audio connecting.
Also for testing, you will have probably noticed the little BT notification it the top margin grows ears >BT< when it the phone is connected to something via BT. Unfortunately it does not differentiate between phone or media audio though. So you will have the same indication there for phone or media or both connections being active. To test your cradle placement technique is working reliably, disable the media audio pairing to the car dock for a couple of days. Then every time you dock the phone in the cradle the BT with ears appearing will confirm you successfully have phone audio connected.

there's an app car dock speakerphone that automatically turns the phone to speakerphone when in the car dock

shane8002 said:
there's an app car dock speakerphone that automatically turns the phone to speakerphone when in the car dock
Click to expand...
Click to collapse
That app would be no good for this problem. The Nexus One is not meant to be in Speakerphone mode when in the genuine google car dock. It is meant to be in BT phone audio mode. It is the car dock itself that needs to do the speakerphone bit with its inbuilt mic and speakers.

I have my dock connected to uninterupted power so it works even when the engine is off, starting, running.
I'll play with at what point I put it in for fun but I don't think that will matter.
I just hate it when I don't do it and someone calls and I have to call them back or scamble to rip the phone off the dock. Hopefully 2.2 will give us a sideways menu/phone/contacts list as well ;-)

Related

Parrot CK3000 BT car kit for XDA2

Just letting people know that the Parrot CK3000 car kit works great with my XDA2. It only uses "headset" mode, so functionality is limited, but it routes the calls through the car speakers and mutes the stereo, so that's all you can really ask.
On my Alfa, I couldn't use the standard ISO connectors, as the car has a separate amplifier in the boot, but chopping the ISO connectors off and connecting the wires separately to the "telephone in" connectors on the back of the radio worked just fine. I can even adjust the volume of the phone call via the steering wheel audio controls!
There's a reassuring "beep" when I turn on the ignition to let youknow tha the devices have bonded and every few days, something goes skewey on the PDA and I have to do a soft-reset to make the bluetooth bond work again, but otherwise, it works fine.
I've put an icon on my PDA for the warm-reset, so that I can do it easily in the car if I realise that it hasn't bonded automatically.
The only real glitch I've found is that if you get to your destination whilst still on the phone, I can't find any way to transfer the call back to the handset without terminating the call - any help on that would be gratefully appreciated.
Good to hear it works, I have a CK3300 with the BT GPS Functionality on route for review.
In asnwer to your question, to hand over the BT headset call to the phone just tap the 'Headphone' Icon on the status bar of the XDA.
Darren,
Funnily enough, I was just outside in the car experimenting when you replied.
Sure enough, if you tap the headphone icon on the PDA, the call is successfully transferred back to the PDA and you can carry on the call directly on the PDA.
If you then press the green button on the car kit, the call will also transfer back to the car kit again.
But - Here's my last issue - If you get into the car with a call already in progress on the PDA and then turn on the car ignition, the car kit beeps to confirm that it has bonded, but I can't find any way to actually transfer the open call to the car kit....
Finally - I've come to the XDA forum for a break from Pocketgps.co.uk! I usually spend my evenings on your site. Tonight, for the first time in weeks, I thought that I'd go and seek other company. Who should be the first to reply to my post here but you!
You're going to tell me now that you also drive an Alfa and that you too frequent the alfaowner.com site as well aren't you!!!
Cheers Darren.
Ah well you see we obviously share a passion for gadgets but not Alfa's, current car is an X-Type shortly to be replaced by a Discovery and yes I spend time at both of their owners ites as well (Note to self, need to get out more!).
I think I'm correct in saying that you can't hand over an active call to a BT Handsfree be it headset or car-kit, I suspect this is a limitation of the XDA's BT Stack (thanks Microsoft NOT!)
I shall leave you in peace now, you've probably had enough of my ramblings back at home base ;')
Is this the same kit: http://www.expansys.com/product.asp?code=PAR_CK3000
There is also an upgrade http://www.expansys.com/product.asp?code=FLS-KIT but it doesn't say what you get for your £45.
Any ideas?
alfiejts said:
But - Here's my last issue - If you get into the car with a call already in progress on the PDA and then turn on the car ignition, the car kit beeps to confirm that it has bonded, but I can't find any way to actually transfer the open call to the car kit....
Click to expand...
Click to collapse
Hit the green button on the carkit, that should do it.
If not, install the XDA2 Bluetooth tool, and retry...
Nope - Green button is documented as being the way to do this for most phones, but it doesn't work with my XDA2....
I did try to install Bluetooth tools ut then couldn't get the devide to pair with the Parrott at all, so I hastily removed them.....
I'll think that I'll live with as it is, now that everything else is stable and works OK....

Best car integration kit?

For years I've been handling all the music in my car via a first-gen iPod mini under the passenger seat connected to a Harman/Kardon Drive+Play. It's got its flaws, but it works great. I turn on the car and it picks right up where it left off. The control is mounted right where my hand expects it to be and the screen is easily visible. No fuss, no muss.
I'm wondering if I can accomplish something similar with my Nexus One. What I DON'T want to do is have some complex setup where every time I get in the car I have to connect three cables and put the phone in some gawdy clamp mount, then be awkwardly trying to use the touch screen while driving, then having to stop playback and disconnect everything when I get out of the car.
I'm looking for a solution that is either one cable or automatic bluetooth. Preferably there would be an external monitor screen. I'd like a manual control that I could mount by the arm rest or steering wheel and use without looking at it. At minimum, I could do music and calls. Navigation would be a plus.
Does anything like this currently exist?
Sounds like your after any number of car headunits that support AD2P (audio over bluetooth), bluetooth voice, and navigation. Alpine, Eclipse and Kenwood all make good units that should do what you want. You should be able to leave your phone in your pocket and just have it connect via bluetooth when your in range.
I've had minimal success with the various Pioneer headunits due to them not supporting AD2P without additional controllers = more money.
I hadn't thought of just replacing the head unit but I suppose I'm due. I browsed Crutchfield but there's no filter for A2DP capability. Anyone have any suggestions for a DIN head unit with integrated A2DP and a color LCD screen?
I'm currently using a jvc kd-r900. It comes with a little Bluetooth adapter that you can plug into the rear USB port. I have it setup to auto start car home when it connects to the bluetooth. Usually by the time I get in, start the car and put my seat belt on, my phone is connected and ready to play music/calls/GPS/etc. I can start music either from my phone or just pressing the play/pause button on the head unit. Works really great. I can switch songs pause/play and make calls directly frm the head unit without having to touch my phone. My wife had her phone in her purse in the back seat and was still able to play music without touching the phone
Overall pretty pleased with the unit and it works great with my n1.
Sent from my Nexus One using XDA App
Can you browse/navigate Artist, Album, Track, etc. from the head unit? If so, this is probably exactly what I'm after.
I can't browse using the headunit. It only allows my to play/pause and skip tracks.
Ah, okay. Thanks for the tip. This looks like a good unit.
Anyone else have experiences with A2DP headunits?
This might be dumb. But do all android phones have this a2dp feature? Isn't it just the same as a Bluetooth headset sort of, so they ALL must have it? If so I'm definitely getting a new stereo! I just want to make sure that after my nexus I can still use this feature!
A2DP is a software thing. So as long as the phone has a Bluetooth 2.0 chip (the G1 does) and the operating system supports A2DP (At minimum, Froyo does) then you're good to go.
I use a THB BURY CC9060 Music. Full Bluetooth kit with full music control from a remote dash mounted screen and call handling.
Sent from my Nexus One using XDA App

[Q] Using in my car?

With my iPhone I just had a kensington dock connector that charged + had an AUX out - so I got power + audio through the dock.
With Android it's clearly not nearly as easy
My car does not have native bluetooth but it WOULD be nice to take this opportunity (if it makes sense) to be able to effectively use my android phone for audio, gps nav (spoken directions) and handsfree calling (or at the very least, receiving calls)
What would be the best way to accomplish this? My AUX-in is in my center console, covered... so I could stick a bluetooth->3.5mm adapter there..
This SHOULD work for audio, GPS and hearing calls - but what about speaking on the phone? Phone might be in pocket - but even if in a holder mounted on windshield would mic be positioned properly to speak into it?
One thing i would really love is to be able to use GPS navigation while listening to radio, but I'm not sure this is possible. When using GPS I either have to ignore voice prompts or switch to AUX and be music-less or restricted to music from phone...
FYI I have a 2007 Accord - the AUX port was added in after
I have an aux port and I don't think you are going to be able to do all the things you want through the Aux port. I use the aux port with a HTC Stereo clip and that streams just music to the aux port from any bt device (I have a N7 as well). That is all the Aux port will do and all I want it to do. However saying that I also have a Parrot minikit neo which connects automatically when I have my llama profile to switch on bt when disconnecting from any wifi, which usually means home or work. Using the Parrot or anything like that, you will be able to use navi for voice prompts and answer calls at the same time.
No not ideal, but works for me. No it's not seamless, but it works bottom line. lol
If anyone else has a setup, please post up!
I don't think there's a seamless way to accomplish what you're trying to do. I've got a 2010 Accord and use a windshield mount and AUX for music/GPS. Works well for me. I don't think there's a way to listen to the radio and GPS nav unless you're just using the N4 speakers.
I've been using this in my car.
http://www.amazon.com/XtremeMac-InCharge-Auto-Bluetooth-iPhone/dp/B005UKLW0W/ref=pd_sxp_grid_i_2_1
The mic is located on the huge male end of the 3.5mm plug and if placed or mounted properly(somewhere near the driver's mouth), you may be able to talk clearly as well.
I don't talk on the phone while I drive, so I disabled that function and have never used it.
This item was on sale a couple of weeks ago for $20 on one of those deal sites.
Also bought a 3.5mm extension cable to plug into the aux port on the stereo.
I haven't figured out how to have the radio and GPS directions come out the same speakers either.
I just got this yesterday:
http://www.amazon.com/Belkin-Blueto...56633664&sr=1-1&keywords=belkin+bluetooth+car
It mounts on the dash and has a microphone built in. It is powered (and the power cable includes an extra USB port so you can charge your phone while this thing is plugged in). I am in love with this thing, it works beautifully. I paired it once and since then, when I get in my car and push the button on this device, it automatically connects to my phone. If I'm talking on the phone or listening to music, the audio is automatically redirected to my speakers (if you're on a call and don't want it on your speakers yet, just don't push the button on the bluetooth adapter yet).
It works to control the phone too, I can push twice to go to the next song (works in google music and pandora, haven't tested others), click once to pause, hold for 2 seconds and release to pull up voice dailer.
Sound actually seems a bit improved as well compared to the AUX out on the phone. I find the AUX out volume to be extremely low, and this seems to be a bit louder, although I haven't done any actual tests to confirm.
I built a custom dock that has a charging cable built in, so I get in my car, set it on the dock, hit the bluetooth button on the adapter, and I'm listening to music and making calls. No wires to plug in, no hassle. It's great.
A couple of things I still need to test though. I haven't tried GPS while listening to music yet, so I can't confirm that functionality. I also have not tried other voice functions from the voice dialer to see if I can have it play a certain song or other voice commands.
Kaitlyn2004 said:
With Android it's clearly not nearly as easy
Click to expand...
Click to collapse
No... its not. But if you want easy... this is the way I recommend you go.
Unless your current in-dash stereo is an expensive aftermarket unit, just replace it with a new bluetooth enabled model. They are dirt cheap now-a-days and can be had for around $100-150.
While you may save "a little" money going with some crippled add on solution, a new unit will give you all that you are after plus a USB port for charging, all in a simple, single interface. Also, with add ons you may run into ground loops issues and other nonsense (which will take more money and time to address).
just my 2¢... but I have considerable experience with a variety of add on bluetooth stuff, and if my head unit wasn't a $1500, double DIN, standalone GPS/DVD unit, I'd have yanked it and put in a cheap, new bluetooth capable unit in a heartbeat. I was talking to my brother on Christmas... he was in Starbucks getting his daily fix. Then walked out to his car where his new $150 Sony automatically picked up the conversation upon starting the engine, and I didn't miss a syllable.
Radiocore said:
I just got this yesterday:
http://www.amazon.com/Belkin-Blueto...56633664&sr=1-1&keywords=belkin+bluetooth+car
It mounts on the dash and has a microphone built in. It is powered (and the power cable includes an extra USB port so you can charge your phone while this thing is plugged in). I am in love with this thing, it works beautifully.
Click to expand...
Click to collapse
I've had one of these for a month or so. It works quite well, though I have some audio/volume issues due to my aux input being a soldered hack into my old Saab's radio. Not Belkin's fault. It works well for calls, pauses Spotify when Google Gnav is announcing turns, can pause or skip songs in Spotify, etc. $30 well spent.
Though after reading this thread, I'm thinking of changing out the car radio head unit for one that has integrated Bluetooth to do away with my hack. Found a well reviewed Pioneer on Crutchfield and Amazon for around $100.
Sent from my Nexus 7 using Tapatalk 2
Check out JVC as well. They have good support for Android, with Pandora, and a dedicated remote app too.
Yeah, I don't seem to have any of those volume issues, and I get now grounding feedback or anything.
A new headunit of course is the ideal solution, but I didn't want to give up my setup quite yet for that option, and right now the Belkin has treated me great.
I did test navigation while music is playing (google music app), it just lowers the volume of the music while she talks over it. Works just fine in my opinion.
Holding down the button on the Belkin brings up the voice caller, and it strictly only lets me do call commands. Anyone know how to change this so that holding the button on the bluetooth device will open a different app on my phone? Specifically, Google Now.
For those with the belkin, does it automatically connect when you get into your car?
Kaitlyn2004 said:
For those with the belkin, does it automatically connect when you get into your car?
Click to expand...
Click to collapse
I've been using the Jabra freeway Bluetooth speaker. Works great with excellent battery life. Auto connects when you get in car.

Bluetooth behavior?

On my Galaxy S7 Edge, when I had it connected to my Bluetooth earphones playing music, i'll start my car and my S7 Edge would seamlessly connect to the car without me needing to do anything. With the U11 it doesn't do this, it continues to play through my earphones and is a hassle to switch to the car. Is there an app or setting that can be changed so that I can make the U11 behave like the S7 Edge?
I also noticed the edge was super aggressive with holding the Bluetooth connection as when i tried to connect to my earphones while in the car, it would try to switch back to the car.
Sounds like with the U 11, it is doing its job. Holding on to the current connection. How would it know to stop play in the headphones and switch to car if you don't make. As with Edge that sounds more like a pain the butt, switching to different devices without your permission. I would stop connection with earphones and reconnect to car. Ultimately turning off earphones before entering car.
schmeggy929 said:
Sounds like with the U 11, it is doing its job. Holding on to the current connection. How would it know to stop play in the headphones and switch to car if you don't make. As with Edge that sounds more like a pain the butt, switching to different devices without your permission. I would stop connection with earphones and reconnect to car. Ultimately turning off earphones before entering car.
Click to expand...
Click to collapse
I kind of prefer it that way though. I only have the two devices, and when i'm in the car I want the car to take over. I just get into the car and go, it's seamless.
Cryosx said:
I kind of prefer it that way though. I only have the two devices, and when i'm in the car I want the car to take over. I just get into the car and go, it's seamless.
Click to expand...
Click to collapse
Until you enter the car with someone else, and the car starts to broadcast your conversation through its speakers...holding to the connection is definitely better behavior.
AarSyl said:
Until you enter the car with someone else, and the car starts to broadcast your conversation through its speakers...holding to the connection is definitely better behavior.
Click to expand...
Click to collapse
When a call comes in, I can answer it on my Bluetooth earphones. So that isn't a problem.
schmeggy929 said:
Sounds like with the U 11, it is doing its job. Holding on to the current connection. How would it know to stop play in the headphones and switch to car if you don't make. As with Edge that sounds more like a pain the butt, switching to different devices without your permission. I would stop connection with earphones and reconnect to car. Ultimately turning off earphones before entering car.
Click to expand...
Click to collapse
Reading into it looks like being able to connect to at least two devices at the same time should be normal. The U11 isn't doing that.
Cryosx said:
Reading into it looks like being able to connect to at least two devices at the same time should be normal. The U11 isn't doing that.
Click to expand...
Click to collapse
Do keep this in mind....phones can connect to two different devices... technically. When I connect my phone to the car, it has to connect the phone AND the media to the car. I know this because I was playing music from my Bluetooth speakers at home that don't support phone calls, and my wife pulled into the driveway, and called me. My phone was able to connect to the car, while still connected to the speaker (and the FitBit Alta on my hand).
Point is...phones can connect to different devices from different profiles simultaneously. Forgive my terminology, because I am not an expert in this department.
AarSyl said:
Do keep this in mind....phones can connect to two different devices... technically. When I connect my phone to the car, it has to connect the phone AND the media to the car. I know this because I was playing music from my Bluetooth speakers at home that don't support phone calls, and my wife pulled into the driveway, and called me. My phone was able to connect to the car, while still connected to the speaker (and the FitBit Alta on my hand).
Point is...phones can connect to different devices from different profiles simultaneously. Forgive my terminology, because I am not an expert in this department.
Click to expand...
Click to collapse
I have to manually disable media on my headset for both to connect though. It doesn't do this automatically like it should. I want to know if this is a bug that will be fixed later or was intentional.
Also it seems 7.1.1 has Bluetooth issues for cars

Bluetooth device to only let my phone know I'm in the car?

I want to find a way for my phone to automatically know when I turn on or off my car while I'm in it. I will use tasker to turn on and off my mobile hotspot when I'm in the car, so my echo dot ,connected to aux-in, can play music.
tl;dnr: looking for a usb-powered-only bluetooth device that can connect to phones and doesn't involve the aux-in of my car audio. eg: usb-powered bluetooth speaker/speakerphone/input-device.
Click to expand...
Click to collapse
My car doesn't have bluetooth, so I have been looking for some sort of bluetooth device that will turn on and off with the car.
I don't want to use any type of bluetooth receiver since:
I'm already using my aux-in for my echo.
FM transmitter is also out since I'm switched to aux-in.
If I have the bluetooth receiver audio go nowhere, then I won't be able to hear my phone's GPS navigation.
I thought about bluetooth hands-free calling speakerphone devices, but the ones I've seen all use batteries, meaning it'll not turn off immediately when I turn off my car and will also probably need me to manually turn them on when I start my car. Anyone seen a batteryless version?
Are there any other bluetooth devices that run purely off usb power or off the car charger port?
I just tried the nonda zua smart charger that is suppose to connect to your phone when you turn it on. Only problem is that despite it showing up in the bluetooth device list, it doesn't seem to be a device that you can normally connect to. You have to install their app and the app somehow connects to it, even though the phone's bluetooth icon shows no active connections. Maybe the phone will only show a connection to devices it has supported profiles for. I can't even get tasker or android's smart lock to sense that the device is near.
Anything else out there? Is there a bluetooth input device that runs purely on usb? I have a selfie stick with a usb component that charges over usb and has an on/off switch, and I'm tempted to test if I can power it with the internal battery and have it turn on automatically when power is supplied. But I don't want to break my only selfie stick yet.
I suppose I can pair some usb-powered speakers to a bluetooth receiver so that I hear my phone over the speakers. Any recommendations? Of course, the speakers must not have batteries.
Found this:
It's actually a bluetooth speaker that doesn't have a battery. No idea if it will auto-pair when usb power is on or if the lamp can be turned off.
Can't you use an NFC tag on your car mount? When you mount your phone it hits the NFC tag and since you use Tasker you can set it to do what you want when you touch the NFC tag.
Sent from my Pixel XL using Tapatalk
biggiestuff said:
Can't you use an NFC tag on your car mount? When you mount your phone it hits the NFC tag and since you use Tasker you can set it to do what you want when you touch the NFC tag.
Click to expand...
Click to collapse
I may not always mount my phone and it may just stay in my pocket. And I would need to remember to hit the NFC again when I leave my car to 'automatically' turn off the hotspot. I also sometimes forget to take my phone with me and was going to have the phone alert me when the car is off.
badbob001 said:
I may not always mount my phone and it may just stay in my pocket. And I would need to remember to hit the NFC again when I leave my car to 'automatically' turn off the hotspot. I also sometimes forget to take my phone with me and was going to have the phone alert me when the car is off.
Click to expand...
Click to collapse
How about an obdii car adapter? No audio and you get vehicle stats
Sent from my Pixel 2 XL using Tapatalk
biggiestuff said:
How about an obdii car adapter? No audio and you get vehicle stats
Click to expand...
Click to collapse
I'll look into that. I need it automatically connect to my phone without the need to install an app. I don't want to face the same issue as with the nonda car charger, which requires the app to be running constantly to connect and it somehow can connect without android showing a bluetooth connection to it.
I've decided against obdii adapter because I am unsure if android has a built-in profile to automatically connect to it without the aid of a third party app to constantly monitor bluetooth. And they are rather expensive, especially for the ones that are smart enough to go to sleep and not constantly be powered on and drain the car's battery.
There are some speakerphone adapters that don't use batteries so I'm going to try one of them and connect them to usb-powered speakers. Going from a Nexus 6P to a Pixel XL, I'm finding the speakers are now rather weak and adding external speakers will help with GPS navigation.
It seems to me the easiest thing to do would be to upgrade your car stereo. By the time you're done with all of these workarounds, it might be cheaper, too.
Either that or ditch the echo dot and use the phone to replace it's functionality. I'd go to an auto audio shop and see if they could install an ignition switch controlled power source running a proper Bluetooth to aux adapter and compare that to the cost of a new head unit.
badbob001 said:
I want to find a way for my phone to automatically know when I turn on or off my car while I'm in it. I will use tasker to turn on and off my mobile hotspot when I'm in the car, so my echo dot ,connected to aux-in, can play music.
My car doesn't have bluetooth, so I have been looking for some sort of bluetooth device that will turn on and off with the car.
I don't want to use any type of bluetooth receiver since:
I'm already using my aux-in for my echo.
FM transmitter is also out since I'm switched to aux-in.
If I have the bluetooth receiver audio go nowhere, then I won't be able to hear my phone's GPS navigation.
I thought about bluetooth hands-free calling speakerphone devices, but the ones I've seen all use batteries, meaning it'll not turn off immediately when I turn off my car and will also probably need me to manually turn them on when I start my car. Anyone seen a batteryless version?
Are there any other bluetooth devices that run purely off usb power or off the car charger port?
I just tried the nonda zua smart charger that is suppose to connect to your phone when you turn it on. Only problem is that despite it showing up in the bluetooth device list, it doesn't seem to be a device that you can normally connect to. You have to install their app and the app somehow connects to it, even though the phone's bluetooth icon shows no active connections. Maybe the phone will only show a connection to devices it has supported profiles for. I can't even get tasker or android's smart lock to sense that the device is near.
Anything else out there? Is there a bluetooth input device that runs purely on usb? I have a selfie stick with a usb component that charges over usb and has an on/off switch, and I'm tempted to test if I can power it with the internal battery and have it turn on automatically when power is supplied. But I don't want to break my only selfie stick yet.
I suppose I can pair some usb-powered speakers to a bluetooth receiver so that I hear my phone over the speakers. Any recommendations? Of course, the speakers must not have batteries.
Click to expand...
Click to collapse
I used to use a Bluetooth ODB2 adapter (and Tasker) for this exact purpose.
Sent from my Pixel XL using Tapatalk
Weudel said:
It seems to me the easiest thing to do would be to upgrade your car stereo. By the time you're done with all of these workarounds, it might be cheaper, too.
Click to expand...
Click to collapse
W
This guy has the right idea, get an android auto head unit.
Weudel said:
It seems to me the easiest thing to do would be to upgrade your car stereo. By the time you're done with all of these workarounds, it might be cheaper, too.
Click to expand...
Click to collapse
Do they make car stereo units that can mix multiple sources like aux-in and bluetooth?
I've had a cheap ODBII scanner in multiple cars for years and never had a battery drain issue. I honestly can't remember if my phone auto connects to it or not, last time I tried to read from it I couldn't because the latest Android beta update broke the connection.
badbob001 said:
Do they make car stereo units that can mix multiple sources like aux-in and bluetooth?
Click to expand...
Click to collapse
You're missing the point, android auto will do your music and satnav prompts over usb. No need for the echo dot at all.
Rockford fosgate "rfbtaux" cheap reliable and will do what you need
You can use an OBDII adapter for detection
https://play.google.com/store/apps/details?id=com.kanetik.bluetooth_profile_condition&hl=en
You can set the condition to activate your task when its near the adapter
https://play.google.com/store/apps/details?id=com.kanetik.movement_detection&hl=en
I just learned they also have this app that should bypass the need for the hardware.
These apps are not free, $1.49 each. I can vouch for the bluetooth detection app, might try the movement one.
I bought this for my car and it turns on when there is no key in the ignition and off automatically when the key is pulled out.
https://www.amazon.com/gp/product/B009OBCAW2/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

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