I am going to attemp to hookup a Motorola IHF 1000 Bluetooth Car kit to my 2002 Bonneville SLE Radio. the car has OnStar and I was hoping to wire the kit using the OnStar connections since it mutes the radio. I don't mind disconnecting the OnStar to get this kit to work if needed. Has anyone been successful at this or can I get a schematic of the Bonneville radio and Onstar system? Any help would be appreciated. Thanks