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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.
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.
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
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
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. Here is the VIN : 
Need wiring diagram for head unit
.
Update: I made some progress
