Q: Today I was in a car that had a Bluetooth receiver built-in to its stereo that could connect wirelessly to an iPod or iPhone. Does such a Bluetooth device exist as a separate unit that plugs in to the car stereo?
A: There are several companies offering solutions for this. One good example is Griffin’s recently-announced BlueTrip Aux which connects to your car’s accessory power outlet for power and then connects to your vehicle stereo’s auxiliary in port. The Griffin BlueTrip DualConnect provides the auxiliary output as well as the option of using FM transmission for car stereos that do not have an aux in port.