http://www.griffintechnology.com/products/roadtrip/
This thing works.
I had iTrip before it, not good.
But Road Trip rocks.. I did read magazine review of it befure I did buy one and at test many people couldnt hear difference of Road trip and CD..
Also other peope if they tune their radio to same station will hear your music and they will hear it very clear. Amazing device..
Only bad thing I have found was that its on way when you put shfter to reverse.. Well.. I mostly go forward anyway..
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Even I am not smoker, it looks like I would need 3 cigarette lighters.. One is just not enought.. RoadTrip needs one, Garmin Streetpilot C550 also want one.. and what if I want to charge GPS phone..