I bought this one and it works great, saw it advertised on another site and there were some independent reviews on it when i googled it that made me buy it http://www.canadadrivesafe.ca/index....od&productId=4 here are the reviews i found, there may be more. http://www.buymeaniphone.com/2009/03...m-transmitter/ and here: http://www.youtube.com/watch?v=b06GD...layer_embedded good luck in your finds!