I've tried a couple of headphone extenders with inline controls to try and get something to control music with, I blind-ordered 2 from Amazon.
o The iLuv iEA15.
o The Griffin SmartTalk
The iLuv has a central play/pause/skip button which works with the N1 music app but the +/- volume buttons do nothing. Triple-click for previous track also does not work.
The Griffin has just 1 button for play/pause skip which also works fine, it also has a built-in microphone which works.
So, looks like inline volume control is NOT compatible with whatever method the iPhone/iPod uses, but maybe this just needs a software tweak somewhere? (i might put a REQ into the dev. topic and see if it flies), but if you just want inline play/pause/skip with a microphone, then the Griffin looks like a winner. The iLuv has a much shorter cable and no microphone so is possibly more suited for in-pocket use.
From my car/steering wheel I have to cables
Can high
Can low
Any way to get those connected to the MTCD unit?
On unit I have key 1 key 2?
Volvo V70
I believe looking at the instructions that key1 and key2 are keypress type inputs into the device similar to the illumination cables that tells the HU your lights are on and dims the display. I believe they work on a 12v signal (although you might want to confirm that and do a little more research before trying) idea being you could maybe hook up two dashboard buttons that when you press them you could get the unit to do something (run an app or trigger some code).
I think the Can High and Can Low are high and low signals from the onboard computer. I think the two are incompatible. But I am certainly no expert.
Key 1 and 2 are for resistive steering wheel controls. They have nothing to do with CANBUS.
You are going to need a CAN bus adapter for steering wheel control.
This transforms the CAN signal to the head unit into a resistive signal which can be connected to the key 1 and 2 of the head unit loom.
I would attach a picture of what this adapter looks like but I'm not allowed yet.
What year is your Volvo V70 ?
Hello all,
So I purchased a buttonless PX5:
https://www.aliexpress.com/item/And...32849648099.html?spm=a2g0s.9042311.0.0.qvQ36y
However, none of the Android widgets or volume buttons work to control the volume.
Only the little button off to the top right corner does anything.
I feel like I'm going to crash my car, constantly hunting for that thing.
Is there anyway to patch/hack this thing to respond to something like a virtual volume slider like this?
https://play.google.com/store/apps/details?id=com.clownface.volumeslider
Thanks!
Why do you need onscreen volume? Didnt you have a CAN and steering wheel controls? The volume control on HU is not the same as on smartphones. It has controlled by MCU board where android board sends special commands from the headunit service.
My car came with a sport package, which meant smaller diameter steering wheel and therefore no wheel controls
That being said, the sound slider via settings menu is indeed able to control the volume via onscreen controls. It just doesn't seem to respond to the normal android media controls, is there a way to link the two together?
Then the simplest way is to use infrared remote control (if your HU has it) or to buy universal resistive SWC and connect it to Key-wires.
xtracrispy said:
That being said, the sound slider via settings menu is indeed able to control the volume via onscreen controls. It just doesn't seem to respond to the normal android media controls, is there a way to link the two together?
Click to expand...
Click to collapse
The only way is to create your own service or automation that will send volume control broadcast intents to mcu.
For my MTCB it may be even a shell commands:
Code:
am broadcast -a com.microntek.irkeyDown --ei keyCode XX
where XX - 19 (volume up) or 27 (volume down).
You need to find this commands for your MTCE here and you will be able to use Tasker for your own service creation.
The second way is to write service on java. But you need a skill for that.
Found xposed-mtce-utils do the job. It has "a strip of volume control at the bottom of the screen".
https://forum.xda-developers.com/showpost.php?p=72103289&postcount=2
aluver said:
Found xposed-mtce-utils do the job. It has "a strip of volume control at the bottom of the screen".
https://forum.xda-developers.com/showpost.php?p=72103289&postcount=2
Click to expand...
Click to collapse
Thanks for the link! I'll definitely give this a shot.
Do you have any experience entering recovery mode on a deck that has absolutely no buttons?
xtracrispy said:
Thanks for the link! I'll definitely give this a shot.
Do you have any experience entering recovery mode on a deck that has absolutely no buttons?
Click to expand...
Click to collapse
Don't have a MTC unit but try this,
Install Terminal Emulator app, enter "reboot recovery"
pretty big fails on the trying front.
I've managed to buy a MTCE deck that has neither buttons or SD card slot with which to install malaysk rom the prescribed way.
Has anyone had luck with a pure download -> flash approach? If so, any instructions online?
xtracrispy said:
Has anyone had luck with a pure download -> flash approach? If so, any instructions online?
Click to expand...
Click to collapse
I believe it must update from usb-flash drive.
Volume up/down codes for your MTCE: 273 and 281.
You can now use Tasker to draw your own Up/Down arrows and set the shell commands for them (w/root).
Or you can use any usb keyboard or other usb-hid device and set the volume commands for buttons you wish.
Other key codes here https://forum.xda-developers.com/an...tcd-5-1-1-xposed-compatibility-t3380468/page2
Volume control workaround on buttonless HU
Hi this should help you which I posted on Car Launcher thread.
Seems we have the same HU except mine was sold by XTRONS.
Like many of you on this forum, I love the simple efficient GUI of Car Launcher AG, amazing work from the developer ! yet I have come to the frustration of volume control on bare HU like mine : PE88CMPL from XTRONS which has absolutely zero buttons at all.
So I went on eBay and bought "Car steering wheel remote control buttons wireless android gps navigation", connected it to Key 1/Key 2, Ground and acc 12V.
Programmed the buttons to volume up down mute and other useful functions such as back/home/gps/answer call/hang up and shutdown.
These setups are in the Car Steering Wheel area in settings.
Those buttons are super small and come with a 3M double face on the back and can be properly installed on the console at arm/finger reach.
I saws that JOYING sells a larger one that fits in cups holder "JOYING SWC Steering Wheel Controller for Android Universal Car GPS Stereo Radio" if you prefer that design.
Enjoy
Hello, i now that issue isn't from this thread but i need some help for use an usb knob that dont make nothing on a MCU of Spreadtrum SC9853I.
This multimedia knob change only the sound level of notifications. It's possible to make it work on MCU.
Thanks
PaulBorges said:
Hello, i now that issue isn't from this thread but i need some help for use an usb knob that dont make nothing on a MCU of Spreadtrum SC9853I.
This multimedia knob change only the sound level of notifications. It's possible to make it work on MCU.
Thanks
Click to expand...
Click to collapse
you're in the wrong forum, suggest searching for "SC9853I" and ask the question of the knowledgeable joying people.
Hi. Sorry for my google english.
I have -Px6 DSP 9 " MTEC_CHS buttonless with Android Pie- and I couldn't find (if any) a "Knobby volume control style" apk for volume control. I can't put a link from Google Play.
The idea is to touch the screen with 3 fingers (anywhere on the screen) and rotate your wrist to bring up the volume control and increase or decrease the volume. Like a home amp. Do you know of any MTCE that has it since I suppose it should be integrated into the MCU or some apk ?.
Thank you all
I have a 2012 Mercedes GL350 with a MTCD PX5 head unit running Hal9 version 3. My steering wheel controls work for the standard phone answer, hangup, and music forward and back - but my steering wheel controls have a button that was used as a "wake" for the old head unit to listen to verbal commands. Currently this button does nothing with the new head unit. I am wondering if I can somehow set this to activate the google assistant to listen for commands. Currently if I try to use the "Hey Google" or "OK Google" voice commands both my phone and the head unit respond. I'd like to change the car head unit to activate on this steering wheel control instead.
Anyone have luck with something like this?
Similar issue here (Mercedes w164). I opened a thread for the can bus where you can participate.
Using the Hal9k ROM and set the option to display the steering wheel codes this button sends nothing. Therefore i assume it is related with the Canbus adapter .
I’ve got a PX6 12.1 screen for my ranger but the steering wheel buttons have been playing up with the volume down putting volume up and volume up skipping track it would sometimes be fine other times play now it’s permanently swapped to the buttons are doing the wrong thing. It’s had a new canbus module and no difference. Does it sound like a hardware fault? Are there any other setting that I can check. I’ve tried reprogramming the buttons in the steering settings but my unit doesn’t support that.