Hey you guys i know this is an older thread but im dealing with the same problem. I installed an aftermarket radio and im getting the error message on the dash bc the original radio uses data bus signal (WTF IS THAT) and i have contacted some shops in my city that say i need a module for door chimes etc. THe thing is my wifes car never had any door chimes to begin with. MY QUESTION is which wire is the data bus wire on the factor wire harness. I was told that if i cut this wire the error message will cease. What color is it i cant find that info anywhere ??????

Moved into a new thread for less confusion.. The similar, older, referenced thread is here: https://www.gmforum.com/audio-afterm...oblems-305789/