many settings, easy operation. Loads the title from the USB flash drive incredibly fast. Sound quality is also very good in my opinion. Installation was very easy. The required cable adapter for my Golf IV was already working with. But what bothers me is the very mediocre radio reception. I had in front of a 10 year old NoName radio inside the supermarket. My regional favorite stations did I get much better pure as the here! In the settings you can adjust the frequency of the transmitter automatically better looking radio with bad reception. The Regional now there is no better time. The Supraregional eg Antenne Bayern or Bayern3 the reception is good, but changes as the radio while driving more often, the frequency. But that happens so fast that you almost do not hear the frequency change. The CD player, I can not judge, because once used. Hab now yes USB stick :-) My conclusion: listening to a lot of USB for those is in my opinion not to recommend the Radio Top, to listen to the radio a lot.