I had an appnt at Best Buy a couple of weeks ago to have the AVIC D3 installed. After taking the radio out, they realized that they did not have the wiring harness for it, and needed to make some calls during the week to find one. Finally, I went back yesterday to have them tell me that presently none exist for my vehicle. I mentioned to them that crutchfield's suggest the Scosche GM databus interface DCGM16 for the 2007 Chevrolet Equinox, but they responded that this harness had only one connection, and they saw that my vehicle needed two when they had removed the radio, so it was not compatible. I am stuck, I have already purchased the Bluetooth module, now I'm being told no harness exists for my vehicle...can anyone help? I do not have OnStar, I have the high-end factory stereo (model code U65), with an external amp and sub-woofer, from what I've been told...

for starters, dont go to bestbuy

do you have factory XM? I believe that is what the smaller plug is for. I could be wrong.

Depending on which system it is, you need either the gmoslan1 or lan2.

EDIT: By the way misfit what so wrong with bestbutt I mean buy, I used to work there