i need the colod code for radio in my 2000 chevy silverado?

[dustylar]

im installing a cd player in my truck and ripped the factory wires out of their harness so i need to know which wire is which to hook them up to my cd player.

 

[andy]

You can test each pair with a small battery If you connect a pair of wires to the battery the speaker will make a little sound. After this you will know what two wires go to the speaker. This should give you the location of each speaker. Hope you understood that?