I have an original iPhone. I use the bluetooth connection all the time and I have never had a problem with it. Although, I have had this gorgeous chick checking me out at a stoplight while I was talking on the bluetooth. She gave me a confused look like I talk to myself.Bluetooth works terribly in my car! It must be my specific 3G Iphone, cuz it had cutoff in reception with my IS350 too. Do you have a 3G Iphone?