I tried setting up my phone (Samsung DH-900) with the Bluetooth system in the 07 sedan, and although I'm able to pair my phone with the car, everytime I try to dial a number, it makes this buzzing noise. Also, when the person on the other line picks up, I can't hear anything and he can't hear me either...all we heard was this buzzing noise. I was wondering if anyone experienced anything like this or knew how to rectify the problem...