Workshop ManualsOriginal source
Component Tests and General Diagnostics|Page 193
Add to repair workspace
Page 89
Connector A, black, power supply
Pin A1 - A8
Connector B, brown, loudspeaker output
Pin B1 - B8
Connector C, yellow, CAN comfort
Pin C7 - C12
Connector D, green
This is a source reference. Confirm exact model applicability in the original material.