Since I am no longer 18, I have no amplifiers, cabinets, bass cabinets more in the car. And that's why I just wanted just a good radio, which can play MP3, since this has also bt, I ordered it to me once and I'm totally satisfied. Even the sound is with series Audi boxing super. The only flaw is the manual, it is really bad, and that's the one where you recognize the competitive price. Turn BT is declared totally wrong. Solution in BT menu then just turn it on and on on your phone and search for BT BT nets, then you will find the radio and now you can make calls over BT. And somehow I have not gechecked how to directly select a different folder. However, it has a button where you jump 10 songs forwards or backwards.