Questioni already know what wires are what on the new headunit, but, i need a diagram of which wire is which on the stock harness. if u could send me a diagram via email or something that would be great thank you.
Answerthis is not that simple you need a gm module interface to replace the radio
if you continue with the installation you will damage the cluster,gas gauge warning, door bell warning and air bag sensors
if you need the colors here it is the same but is not a good idea to cut wires
http://www.installdr.com/Harnesses/GM-Wiring.pdf
to do it rith this is what you need
http://www.oemautosound.com/pc-218-135-pac-c2r-gm24.aspx
