I have this factory delco Cd player from my 1991 camaro.



What i would like to know is, which pin on the back is the +12v constant and which pin is the -12v ground?



I need to know this because i am testing the radio in my home for this cool wall project.

thanks fellas

 

On your 20 pin connector, pin 10 is battery +12V and pin 5 is ground. If you want the rest of them, I can do that for you too

 

Sure, if you could get me a pin layout that would be sweet.

Now how are the pins numbered on the connector? Left to right and top to bottom?

Also what are the wires for on the little black 4 pin plug?

 

There should be a number on each corner of the plug on the radio (if I'm not mistaken) as to which number pin is there.

Should be numbered from left to right. Each row is divided into 2 sections, 4-pin and 6-pin. The four pin sections are for speaker signals.

[1 2 3 4][5 6 7 8 9 10]
[11 12 13 14 15 16][17 18 19 20]

1-Left front speaker out (-)
2-Left front speaker out (+)
3-Right front speaker out (-)
4-Right front speaker out (+)

5-Ground
6-Int. park lamp supply voltage
7-Instrument panel lamp voltage
8-Speaker supply voltage
9-RAP fuse supply voltage (?)
10-Battery positive voltage

11-13-Not used
14-Remote radio control (steering wheel control ?)
15-Entertainment and comfort serial data
16-Vehicle speed signal (for speed controlled volume)

17-Right rear speaker out (-)
18-Right rear speaker out (+)
19-Left rear speaker out (-)
20-Left rear speaker out (+)

These came from a printout given to me by my installer from alldata