BlueTrip Aux - Bluetooth Speaker for Aux-input
If you want to use this device for A2DP to play audio through your speakers, it works great. Much better than using an FM transmitter in my experience. However, the microphone is on the unit which plugged into the car probably low on the console. The audio for the person on the other end of a phone call is terrible. There is road noise and your mouth is so far from the mic. It is really unusable to make phone calls unless the car is not moving and you somehow position yourself with your mouth near the micro