Help needed for color coding on stereo

I'm keeping the factory deck, just adding subs and an amp. I bought a RCA convertor so that I can use the amp. I just need to know what colors on the factory deck pertain to what colors on the amp kit. i.e. orange is power, red is FR speaker...blah

Any help would be greatly appreciated

oh yeah, I have a 2002 sunfire 4D. That would probably be good to know

12V - orange (sometimes w/black stripe)
Acc - yellow
GND - Black (duh)

Speakers:
FR - tan(+), grey(-)
FL - lt. green(+), dk. green(-)
RR - dk. blue(+), lt. blue(-)
RL - brown(+), yellow(-)

Best to test all the wires to be sure; this is all off the top of my head. :) Oh, and there'll probably be two browns, one is dimmer/illumination, and two yellows, but it shouldn't be hard to differentiaite because the speaker wires should all be grouped in pairs in the harness. I'd just tap into the rears for your line out converter.

Woops, forgot it's '02... If that's the case there won't be an acc wire in that harness because of databus, but everything else should be the same.

sweet, thanks for the help. it turns out though that gave me the wrong adaptor, so after I went back and got the new one, it was a piece of cake from there. thanks again.

I've got a 2000 Pontiac Sunfire that I have to rebuild the audio harness on, as the previous owner seems to have just cut it to make their own aftermarket adapter.

The wiring I have seems to match up with what you've shown there just fine except i have a purple wire instead of a second yellow wire (the Acc wire). Did the 2000 Sunfire have a databus wire instead of Acc wire? Is the databus wire supposed to be purple?

The purple wire stays at 0V regardless of the state of ignition or lights (at least it does on a multimeter, if its supposed to be transmitting data, it may be missing it). The OEM radio will not turn on, but the backlighting for the buttons will turn on with the headlights. 12V line is good, Both ground lines are good. I'm just stuck at finding out what that purple wire is, and making a decision on wether the OEM radio is dead, or my harness is messed up.

Any hints on what's going on with my sunfire's stereo?

Not sure if this helps but I know that if the stock deck's power is cut, then you have to go to a dealer and have them reactivate the stereo. it's a security thing that the sunfire has, I think all GM vehicles have it on their stock decks.