Snoopdogie187

Sorry I forgot the colors, its been awhile, but you should be able to just buy a wire harense that will solve this problem for you. Even if you didn't want to do that, I just googled it and I came up with the colors. If that doesn't work you can trace to wires and do some testing to figure it out. If you have any trouble I can try to help when I get on a computer (currently on my phone).

Also, if you are having the same problem as I said, it turned out that the speakers were bad, but it did have an after market radio in it already which may have been why the speakers went bad. (I believe gm used different specs then most other sound equpment but I'm not 100% sure of this)