A predecessor model without the practical support I had a few years and was very pleased. In many countries (u .a. Iran, Germany, USA, Canada) used and always used with good sound and barely audible noise. I was unfortunately stolen recently from the trunk. This new model is unfortunately not good at all. I can not find any frequency and any location of the cable in which the music would be acceptable audible. The same car, the same iPod, same frequencies, the same country, only the newer transmitter it does not like the old predecessor. Whether, as another review said, a weaker transmission power is?