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PX5 Android head unit no sound

I just bought a Belsee PX5 Octo Core Android Head Unit for my 2016 Hyundai Veloster. It has a custom harness made for the car. It works great, except there is no sound. The backup camera works, the steering wheel controls work. Everything works....except sound. I am trying to work with Belsee via Email, but we all know how that goes. I am wondering if any of you fine people might have any suggestions that I can try.
I have gone into Factory Settings menu and changed the CANBUS to Hyundai &KIA, still no sound. The Veloster requires a signal over the CANBUS to turn the factory Amp on and produce sound.
Thanx in advance.

what did the reseller suggest when you contacted them for support? Was that to change CanBus settings?

Hi, i have the same problem after upgrading from px3... Did you resolve the problem?

I now have sound..had to swap to a harness with a CANBUS controller on it. But, the EQ does not work, the rear speakers are super low, and there is that electrical whine from the engine. But at least there is sound.

Hi I am new here but I also had the same issue with my Nissan qashqai and the Bose system. I have found that on my vehicle in the Belsee power harness that pin 1 was not present which is the 12v positive that feeds the Bose sound system. I would suggest you get a wiring diagram for the cars head unit and check to see if this is the problem.

Steering wheel controls not working

Radio Dasaita quad core Oreo 10.2
MTCE_HA_V2.89_1
Car nissan - Xtrail/Rogue
Non canbus verion
The steering wheel controls are not working. I loaded the steering wheel keys app. The app does not show any key as being pressed/detected.
There are 4 plugs on the Dasaita harness. There are two connectors in car plus antenna.
Dasaita harness
Nissan medium low power cable 7022-20-2111
Nissan medium plug
Nissan low plug
other two wire plug
Antenna connector
The Nissan medium plug and the low plug are the same. Medium plug has more wires in it.
I connected only these two plugs from Dasiata harness to the nissan car harness
Nissan medium low power cable
Nissan medium plug
Is this correct?

yogesh201 said:
Radio Dasaita quad core Oreo 10.2
MTCE_HA_V2.89_1
Car nissan - Xtrail/Rogue
Non canbus verion
The steering wheel controls are not working. I loaded the steering wheel keys app. The app does not show any key as being pressed/detected.
There are 4 plugs on the Dasaita harness. There are two connectors in car plus antenna.
Dasaita harness
Nissan medium low power cable 7022-20-2111
Nissan medium plug
Nissan low plug
other two wire plug
Antenna connector
The Nissan medium plug and the low plug are the same. Medium plug has more wires in it.
I connected only these two plugs from Dasiata harness to the nissan car harness
Nissan medium low power cable
Nissan medium plug
Is this correct?
Click to expand...
Click to collapse
What is your HU model number?
Check under Factory settings/canbus for a suitable option for your car; based on some Dasaita units wiring information your car need a decoder named CB008 if you previously had the default 7" screen unit
Usually you need a canbus decoder box to retain SWC controls or maybe you need connect wires named KEY1, KEY2, KEY GND to steering wheel for use controls.

Hi
Thank you for replying. Mr car did not have the 7 inch screen (NAV).
OEM radio info
Maker VISTEON
Supplier code 5AL9
Nissan part code 28185 6fp1A
part name G13-p32
Dasaita radio info
Model PX5 (1024x600)
Kernel 4.4.93+
SW box NOF-RZ-02
SW:V0003
HW:ND02
(180615)
I got the Dasaita radio with the CB011 option.
I have this OEM radio (LHS)
See this picture marked 'without screen'
https://ae01.alicdn.com/kf/HTB1FVLpvY9YBuNjy0Fgq6AxcXXap.jpg
I tried changing the canbus option to number 37(on the radio) but this does not work.
Do you know which of the plugs need to be connected?(see original post)
On a different note. I put the OEM radio back into the car.
It now says "Locked, contact dealer"
What do I do to get this working?

yogesh201 said:
Hi
Thank you for replying. Mr car did not have the 7 inch screen (NAV).
OEM radio info
Maker VISTEON
Supplier code 5AL9
Nissan part code 28185 6fp1A
part name G13-p32
Dasaita radio info
Model PX5 (1024x600)
Kernel 4.4.93+
SW box NOF-RZ-02
SW:V0003
HW:ND02
(180615)
I got the Dasaita radio with the CB011 option.
I have this OEM radio (LHS)
See this picture marked 'without screen'
https://ae01.alicdn.com/kf/HTB1FVLpvY9YBuNjy0Fgq6AxcXXap.jpg
I tried changing the canbus option to number 37(on the radio) but this does not work.
Do you know which of the plugs need to be connected?(see original post)
On a different note. I put the OEM radio back into the car.
It now says "Locked, contact dealer"
What do I do to get this working?
Click to expand...
Click to collapse
Try other nissan Xtrail/QASHQAI/Rogue canbus "voices" in factory setting and check if they working after reboot.
For the "Locked..." i think you need use the radio unlocking code provided to you when buyed the car
Look at this maybe can help: Android Car Multimedia System Nissan Qashqai (installing)

Using the HU to update the instrument panel clock

Hi All,
What is the best way to update the CANBUS clock on my car's instrument panel?
The clock on my instrument panel is apparently controlled by the head unit over the CANBUS. Now that I have an Xtrons PX5 MTCE GS unit head unit, the clock on the dash board just stays at 12:00pm. I drive a Ford Mondeo MK4.
My old PX3 Eonon unit could send radio station data to the instrument panel, but the new Xtrons one sends nothing.
I was thinking of a USB->CANBUS adapter on the head unit and writing an Android script to push the current time to the instrument panel, but wanted to see if anyone's got any better ideas first.
From my limited understanding, the CANBUS adapters supplied with the head units are tied to the MCU's and are solely designed to transfer steering wheel keys - the fact my previous Eonon unit did confuses me..
Many thanks for any input,
Tim

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.
---
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 ?