I bought a kit from Scosche at Best Buy on special for 40 bucks. This is what it has to offer:
http://www.crutchfield.com/p_142DIYB...H.html?tp=8395
The Kit called Motormouth did not have the little flat and square rechargable transmitter bundled for the same price. The Mic for hands free is garbage quality but for BT music and being able to charge my phone off the BT receiver is OK since I wanted a car charger in the first place when I got this thing. All n all it's not that much of a convenience other than I don't use the bulky dongle our phones need to have an audio out jack. And I think gator is right...only usb connection gives you any power, not an 1/8th inch mini stereo jack/port.