My CD exchange was mishandled by me, now he does not want. A solution had to be found. So I came across this possibility. At first I was a bit skeptical, only 15, my car dealer wanted 750, for its solution. What does one do wrong, to find a solution in trying for 15. Thought, done, all the tips follow written here. Switched from Europe to the rest of the world (ROW), full volume (40) and now wanted another frequency. In my environment (Berlin / Brandenburg) I found one at 95.1. I still have two spare frequencies listed. But now from the car, Mazda RX8, antenna in the rear window. Two outlets are at hand that the cigarette lighter and a second in the tray under the armrest. There, the new acquisition was plugged. Set in the Radio 95.1 and programmed. That's it, already the pleasure starts, full of sound on the built-in factory Bose loudspeakers, no difference to the CD changer. Not even a slight noise in the quiet passages. So I did not expect. Maybe I need to try the other frequencies upon leaving the federal states, but that's no problem. Am totally excited about the part, maybe it is in another car different, but for me it's the solution to my problem.