I installed an avic f900bt with the 2.0 software about 4 months ago in a customers car. his iphone has been working since the day he picked up the car and he synced it to the avic. he called me up yesterday and said it stopped working about a week ago. It sounds like he may be having similiar problems like other iphone users are experiencing. he says the phone is connected to the avic, but he's having issues where the other party cant hear him, or vis versa, sometimes he cant hear the other party. Any ideas??????????????