If I can power the unit and it comes on will I be OK? How does the unit get locked? I have heard that the previous owner of the radio has to set the player up to lock upon removal.
1. Ok, I am not sure I understand the Passcode. Looks like it needs to be hooked in the diag port. I dont have one?
2. I had read the forum topic on the 8th pin. I may be willing to try this as a last resort. Not sure of it though. Where can you find a wiring diagram / Schematics for GM Radios?
Thanks, this may help me get headed in the right direction.