Hey, Steve A. here, I'm a GM dealer and I spent approx. 7 days researching this for one of my customers. You'll need a GM PN 92143075 it is only 3.66 + tax and you'll need to find a hands free kit for your phone, make sure it comes with an external speaker (you can put it behind the "holes" in your inst cluster panel) and make sure it will work with the speakers in your stereo! The connector that you get from GM plugs into a harness under dash pass. side and your hands free kit plugs into that. You may need to make a couple of trips to radio shack, I only know of a couple of people to do this, I know it will work though!!!!! Hope this helps, if anyone has anymore ?'s let me know! :cheers