Ronald Anthony

Hi
I decided to buy aftermarket head unit and when sent the photos of my current head unit to the seller he was confused and asked for wiring diagram.

My car is 2004 V8 Japanese W211 Avantgarde

Plutoe

Post your VIN and when konigstar wakes up he will no doubt post and answer!

Ronald Anthony

Thank you so much. Here is the VIN : WDB2110701A048262

konigstiger

Part # does not match EPC nonetheless, I suggest you contact either MB or Panasonic Automotive - Japan they “may” be able to assist with PIN assignments.

Ronald Anthony

Thank you. I will try that

Plutoe

Maybe the attached will help or answer your questions

konigstiger

Plutoe may have answered his own wake-up call

Ronald Anthony

I contacted MB and they sent the following image

which I think is not useful at all
I also sent the file provided by Plutoe to the seller he said nothing about it

konigstiger

Check your private message.

Ronald Anthony

I tried to disconnect some of the connectors and see what happens. I found that the important connectors are these 2 only.



Blue arrow points to power connector and Green arrow points to can bus and "other stuff" cable. If you only connect the power cable, command won't start and SRS malfunction message appears on dashboard display. After connecting the green cable again SRS message disappears and steering buttons works perfectly. the only thing left before replacing head unit would be resolving SRS malfunction mystery