Audio question

I just purchased a 84 Fiero that someone did a butcher job or installing a radio. I ripped it out and figured the speakers by color of wires. But in the speaker wires there is a connection with a yellow, black, and gray wire. Does anyone know what these wires are for? Also there is a plug with a orange and dark brown wire is this related to the stero or something else? I can take pictures if needed to help.
Thanks alot

The yellow wire should be the power wire, black wire is the ground the grey wire I have no idea (maybe the antenna) and the orange and brown wire dont go to anything, At least on my aftermarket radio the didnt connect to anything so you can just tape those up.

The seperate plug: the orange is constant power. The brown is illumination/dimmer-doensnt have to be connected
Speaker wires:
RR- Light blue
LR- Yellow
RR+ Drk blue
LR+ Brown
LF+ Tan
RF+ Lt Green
LF- Lt Gray
RF-Dk Green

Power...:
PowerAnt wire: Pink
Ingnition: Yellow
Dimmer: Gray
Ground: Blk

Other than that: check out this site:

http://www.installdr.com/Harnesses/GM-Wiring.pdf

PS Those wire collors are for the wires in the car.

If youre talking about the collors for the radio.
Red: ignition
Yellow: constant
Blk: ground
Blue: antenna turn on
Blue/white: amp turn on
Orange: dimmer
Orange/white: illumination
White: FL+
White/blk: FL-
Gray: FR+
Gray/blk: FL-
Green: RL+
Green/blk: RL-
Purple: RR+
Purple/blk: RR-


shfew.
hope this helps

Woops, my bad drrrrr, I know how to spell colors!!! Haha....