Need to know which wire connects to which 6-pin din connector. It is the amplifier wire.

 

I have several years diagrams. What year is the car?

 

Its a 1998

 

Well, they don't have that on the wiring diagram. the cable is just one line. I don't have a car so equipped to look at, but even if I did, it looks like I would have to cut the plug off, so I think what you really need now is find one in the scrapyard.

 

The lower 16/2 item here is the amp, upper 16/1 item is the radio. Sorry I couldn't help!