thanks. ok i have that cable but its not plugged in yet. it has the mute as shown in tutorials.
the light baby blue wire (parking lead right on the opposite harness from the mute wire?) looks like its already grounded from the initial install.
do i simply plug in that second harness, change mute location, ground mute, and call it a day?
I think onstar has a mute too, should that matter? i dont use onstart but just checking.
thanks again!!!!!!!!!!!!!!!!!
ps, btb200 install is a breeze....but it erased all my settings when bat disconnected...arhhhhh