please help with gm wire harness

hi all

i am having problems installing audio stuff in my chevy s10 2002. does anybody know the function of each wire color on the wire harness .

thanks.

 hello Jon

 let me explain, i need to an amp to the existing head unit which doesn't have RCA out puts so i need to find out which cables are for what speaker and what polarity.

thanks

ralf

The plug that goes into the back of your factory radio should look like it would plug into this harness.  This harness follows the EIA coloring standards.  Therefore, to determine which factory wires do what in your vehicle, all you have to do is just match up the wires in the picture with the corresponding pins on your factory harness.

However, as always I highly recommend that you verify all of the wires with a digital multimeter, before you tap into them.