I need the pinouts for a stock Delco AM/FM Cassette radio w/ 5 band EQ. It's the 12-pin one.

I also need the standard pinouts for the 21-pin Decks too. The one I have has the same features but for a Saturn.

What I want to do is try to get another radio to work in the IROC. My stock one blew and I have one from a Saturn that looks pretty close to the stock one, but has the 21-pin connector. I figure if I can get this to work, I'll be happy until I can get another stock radio (keeping the car original). I'm broke as hell right now so I can't afford to just go out and bid on another one

 

Okay, I think I have it for the Saturn.

There are 4 sections on the saturn one.

Goes like this:

7A C1, pin 1
O----O
O----O
O----O
O----O
O------
O----O - GROUND
O----O - LIGHTS ON INPUT
------O - INTERIOR LIGHTS DIMMING
O----O - NOT USED
O----O - 10 amp HOT IN ACCY/RUN
O----O - 20 amp HOT
O--- C2, pin 10
C3, pin20

Okay C1 is Front speakers (4 connections), C3 is Rear speakers (4 connections), and C2 is the power, accy, ground, lights input, bla, bla are. Where 7A is, apparently there's nothing? Can someone verify. Should be the same radio as any 1992 (at least most w/ 4 speakers). What are those 7 pins for?

I also found my wiring color chart for the 88 so I think I may have enough to go on, I just want to check my findings. It wasn't easy.