So a few months ago I picked up a Philips 22RC025/50B CD changer (possibly from a 406?) from work and I have a Philips 22RC200/65 head unit (from a 306) in my car, but I don't have the loom to connect these up.
I opened both of them up, fortunately the CD Changer has labeled pins inside, I only need to get the head unit's pinouts to make the cable. Any way to find out which pin could be which? The grounds and positives should be easy, but I have no idea how to figure out the bus signals and audio left / right.
I would appreciate any advice!