Database Info

No external canbus decoder box on newer PX5 HUs?

Hi MTCD community.
Thanks to the time between the years (that's how we call December 27th to 31st in Germany), I had time to upgrade my HU. Up to now I had a RK3188 quad-A9 one (Erisin ES2508B, KGL) that had a proprietary power connector and a external canbus decoder box. (more information here: http://vi.vipr.ebaydesc.com/ws/eBay...descgauge=1&cspheader=1&oneClk=1&secureDesc=0 )
That external canbus decoder of the unit has a few dedicated output pins for illumination, reverse gear and a UART (?) style digital RX/TX connection to send wheel-button key commands. It's a perfect example for a Chinese product. This solution it easy and works - almost:
On Mercedes cars the wheel-buttons are used to steer the so called Kombi (KI). KI and HU are connected via canbus. Key commands are send in one specific can-message. The canbus decoder box is said being made specifically for Mercedes cars. While it correctly decodes button presses it fails to decode the current KI menu. As a result the HU will always interpret the "prev./next" buttons, even when you're not in the KI's Audio menu. As a result you either stop using your KI (bad option) or you disable some keys in the HU (that's what I did). The decoder box is also only reading the canbus and thus not able to send audio titles or the current radio frequency/station name to the KI.
Because of the decoder box sitting between HU and KI I never tried to enhance functionality because that would have ment either connecting another R/W canbus dongle to the HU or replacing the chinese decoder box and reverse engineering the RX/TX communication between decoder box and HU.
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The newer PX5 unit that I now own (Erisin ES7689C, KGL?/LM?, http://www.ebay.co.uk/itm/Android-8...s-W203-W209-/123151147422?hash=item1cac61619e ) has a Quadlock connector (that's the correct name for the multi pin connector that became popular on HUs beginning in the early 2000th) and no external canbus decoder box (it is indeed perfectly plug'n'play). It is also able to identify itself to the KI as Radio which means it is also writing to the canbus. Compared to an original OEM HU, information is still extremely limited and it again fails to interpret only wheel-button commands send from the KI's Audio menu. - But, it is able to write to the canbus, so potentially this is a much better starting point for enhancements.
Now the key question: Does anyone know how the HU is communicating with the canbus? Is the decoder box just inside the HU's housing (and again being an extra translation module) or is it a proper canbus device controlled by an app or service from inside the HUs android?

Good piece of info mate. Thanks a lot
Unfortunately i am not able to answer the question due to limited knowledge.
I own a Mercedes w164 and have the same issues and i am keen to find a solution. Open a thread for that too here > https://forum.xda-developers.com/an...t/adapter-help-mercedes-t3903165#post79005544
My MTCD idetails are :
Unit: MTCD PX5
MCU: MTCE_GS_V3.00_3
ROM: Halk9 Mod 3.1 (Android 8)
Can Adapter : GS 10280514 / HW:V2 SW:V3
Can adapter Setting: 23 Benz_B200(simple)
On another thread more HW related you can find pleanty of info >
https://forum.xda-developers.com/an...elopment/mercedes-benz-class-comfort-t3680320
Also this guy did some work on canbus : http://honeysw.com/canproject.php
and here another piece of info : https://forum.xda-developers.com/an...-units-qa/how-bus-messages-make-unit-t3352343

Hi I also have a MB lol, a w203.
I have been through several head units of types makes etc, so know exactly what you mean. Although I never heard of 'ki' before.
My latest unit I have is def very good (best was a pioneer with separate car-pi can decoder) and that is also an erisin.
Great minds an all that eh!
The unit I have is a 4/32gb android 8. MTCE. It was working very well until I developed a problem with my reverse camera signal not getting picked up. Was switching OK but no image??
Anyway I bit the bullet and installed the custom rom by Malaysk which helps the camera but no steering control (for me) on 3rd party apps.
There is some talk about mtce files etc but I couldnt get anything to work until I installed a brilliant prog called mtcdtools (free from github).
Very techy to understand / use but with the info and help from others managed to replicate enough to get the two up/down left buttons working perfectly on all apps. It starts up by itself and stays in background. I'm very pleased with result and sure it could do much more if i only knew how. Def give it a go.
Also the up/downs only while in the audio sub menu and they operate whichever music app is running even while in the background if that makes sense. The right volume buttons always worked anyway, and with the phone.
I think the real challenge now will be getting info in the dash display to correspond with what ever app is on top. Currently mine just says audio off when using dab, but displays station number in radio and time elapsed from music player., but nothing from nav.

CAN adapter - Help needed (Mercedes)

Hi All,
I need to find some info for the Can adapter so i can fix my issue and help other people with similar problems too .Owner of an MTCD PX5 unit, specific for Mercedes ML (W164) that came with the Can adapter.
From day one the steer wheel buttons worked (vol up/down, phone) and reverse camera out of the box BUT i had no vehicle info at all (door opened, fuel level, temperature, parking sensors etc) as many of the users especially on VW units have. The car is a 2010 model therefore the canbus info should be plenty. Tried all the combinations of CanBus under the extra settings with no luck.
One think i noticed is that i had NO Vehicle.apk or microntek apk and MTCCanbus.apk installed on the unit. I tried to install but installation was failing for both. Even copying to system/app/** didn't worked.
Any idea ?
BTW Anyone knows what is the Knob Mode under extra settings ? Mine is set to : 2 10k/20K ADC Ports
Details:
Unit: MTCD PX5
MCU: MTCE_GS_V3.00_3
ROM: Halk9 Mod 3.1 (Android 8)
Can Adapter : GS 10280514 / HW:V2 SW:V3
Can adapter Setting: 23 Benz_B200(simple)

Hi, i have the same car the same headunit and the same problem.
All is fine but i want to have more can-informations/functions.

zollaki said:
Hi, i have the same car the same headunit and the same problem.
All is fine but i want to have more can-informations/functions.
Click to expand...
Click to collapse
Good to know that this is a generic issue and not specific to my unit and car. It seems a lot of people with Mercedes cars have similar problems. I wonder if this is related with the cheap implementation of the Chinese Can adapters or related with the car.
Will keep searching

Another thread is open with more technical details for similar issue, more HW oriented though here > https://forum.xda-developers.com/android-auto/mtcd-discussion-questions-development

I have the same car w164 and px5 android 8
The same problem.
No I have more problems the canbas stop working no reverse camera no Wheel key vol working and no led light on unit key, I think my canbus dead ?

E90 - Android 8.0 Canbus

Hi,
So i ordered this headunit: Hi-azul Android 8.0 Car Autoradio (4GB RAM / 32 GB ROM, PX5) for my BMW E90
Everything seems to be working fine (steering wheel control, door indicators) except from the climate control visualisation, Reverse beep sound and the "vehicle" app doesn't seem to show all informations.
It seems like a problem with canbus i think, I've looked into the canbus settings and only managed to find "BMW Union", so there is not specific canbus entry for E90.
How do i get these other things to work aswell?

Question Doubts about what can be done with a 7862

Hello. I am looking for a radio to install in my skoda Rapid and I have doubts regarding these FYT uis7862.
1- Would the parking sensors work acoustically and visually?
2- Could I see the information of open doors, temperature, etc on the screen?
3- Can it be integrated with the car's on-board computer to see the phone or navigation?
4- What can be done with these radios that cannot be done with a Px6 or vice versa?

Do you mean FYT based UIS7862

marchnz said:
Do you mean FYT based UIS7862
Click to expand...
Click to collapse
Yes

1- Visually (someone correct me if I'm wrong)
2- Depends on your car and canbus
3- Depends on your car and canbus
4- Esasy rootable and many mods available !

@albertron The canbus is one of the biggest unknowns. Unless there is someone with the same car model and audio, amplifier and climate control as you, there is no way to know unless you try it yourself. You can ask the reseller, but if they say everything works and then it doesn't, what will you do?
Each manufacturer/reseller of these Android head units has code that works with the canbus modules. They don't share code. Some manufacturers are better than others with the canbus coding. Your experiences with other head units, such as a PX6, are not relevant as the code on the PX6 may or may not be used in these newer models.
As cars electronics change and become more complex or various items are integrated such as climate control through the head unit screen, canbus coding for the manufacturers of these head units becomes more difficult. My car is a 2012 Kia Sorento with an amplifier. The audio from the head unit to the amplifier is the only thing that uses the canbus that is used by my head unit. The canbus module that the reseller provided did not work and I had to purchase an aftermarket interface module. I was lucky that I found it. If I didn't find the interface module, I would have a paperweight that I would try to sell.
So, if those items you mention are important or required for you, I would make sure those functions work for your specific setup before purchasing a head unit...any head unit.
The above is what I've come to believe and based on my experience with my head unit and what I've read on various forums.

@mariodantas @mastrv
Thanks for answering. So it's best to ask the seller. Really the only thing that matters to me is that the parking sensor and the buttons on the steering wheel work, the rest of the things are secondary. I have also seen that most radios do not include the canbus adapter and you have to buy it separately, spending another €30. I'll have to look first for an adapter compatible with my skoda Rapid. Although I still have doubts about whether to take a px6 or a FYT with uis7862. I also have the option of an rcd330, but it has bugs that are too serious for me.
What would you do? My use will be 90% listening to music with tidal, and fm radio. The remaining 10% I will use a GPS navigator to travel.

albertron said:
@mariodantas @mastrv
Really the only thing that matters to me is that the parking sensor and the buttons on the steering wheel work, the rest of the things are secondary. I have also seen that most radios do not include the canbus adapter and you have to buy it separately, spending another €30. I'll have to look first for an adapter compatible with my skoda Rapid. Although I still have doubts about whether to take a px6 or a FYT with uis7862. I also have the option of an rcd330, but it has bugs that are too serious for me.
What would you do? My use will be 90% listening to music with tidal, and fm radio. The remaining 10% I will use a GPS navigator to travel.
Click to expand...
Click to collapse
Your parking sensors will definitely work. If you get the correct canbus decoder you will also have visual parking sensors display on your headunit.
Chances are it will work as VAG group canbus codes are pretty well known. I helepd a friend install a MEKEDE unit in a Golf 5 and, even if this particular model was not a choice in setup, canbus integration worked out of the box.
PX6 units are obsolete, go for a FYT unit.

m00n61 said:
Your parking sensors will definitely work. If you get the correct canbus decoder you will also have visual parking sensors display on your headunit.
Chances are it will work as VAG group canbus codes are pretty well known. I helepd a friend install a MEKEDE unit in a Golf 5 and, even if this particular model was not a choice in setup, canbus integration worked out of the box.
PX6 units are obsolete, go for a FYT unit.
Click to expand...
Click to collapse
OK, thanks. I think I'll buy a medeke or navifly then. First I will ask the seller if it is compatible with my car's canbus. Another question I had that I forgot to ask: 1 year ago I had an Android radio in another vehicle, and the tidal app interface was unusable when in landscape mode. By any chance someone has it installed and can tell me if they have fixed it? The problem was that you can't access the search, or playlist, or anything. Only the music player comes out with the last song you listened to. Tidal is my main music medium, and if it still doesn't work I could consider other radios with original Android auto.

I have a Joying uis7862 based unit. It does or can do all the things you asked. Canbus adapter was included with the wiring harness. Specifically I have the JY-VQ130N4GN in a 2010 VW Passat.
I see that they offer a number of units for the Skoda Octavia. I don't know how similar the dash of the Octavia is to the Rapid.

Question Xtrons Head unit for 2010 Lexus IS250, cant get some Steering Wheel Controls to work!

Hi everyone
I have a facelift 2010 Lexus IS250 F Sport, I've had some large success installing this XTRONS head unit for it and I am largely satisfied with it. I am however having an issue with getting Steering Wheel Controls to work with the head unit.
Lexus | Various | Android 10 | Octa Core | 4GB RAM & 64GB ROM | Integrated 4G Solution | PMA10ISLS
XTRONS PMA10ISLS is a 10.1" large screen car stereo with customized face panel and optimized CANbus Decoding for Lexus. It supports CarAutoPlay, built-in DSP, PIP mode enabled ,Dual Theme, Instant Rear Vision and so on.
xtrons.co.uk
Lexus| Various | ISO Wiring Harness | MOST
This ISO Wiring Harness is compatible with XTRONS custom fit units PSP10ISL,PMA10ISL etc. If your car is Lexus IS250/IS300/IS350 Convertible (2-door)with original navigation or fibre amplfier system,you need this cable to aid for the installation.
xtrons.co.uk
This is the unit I purchased, alongside a special wiring harness so that I could use it with my vehicle as its a facelift Navi.
With the default CANbus setting on my head unit, only Volume control seems to work and the phone call buttons and voice command buttons are mapped to functions like Radio and Hey Google but I cannot programme these on the app. With an alternative CANbus setting I get skip track functionality but I get different AC Controls and lose access to my factory amp settings.
The original wiring harness I got for the headhunt has not been used at all as I was instructed to usr the special harness, and that original harness had a CANBUS decoder. XTRONS claim that I am unable to programme the SWC due to the CANBUS needing to decode it, although I have played around with the settings and selected various different CANBUS settings.
Would anyone be able to advise me on how I can get the SWC working, would it involve plugging the CANbus decoder into the head unit? There is a 12 pin connection spare at the back but I am unsure if that would make the difference or not.