Extremely poor, very weak Displayanzeige.Nur if one is looking from the front of the screen and you are in a shaded area you can identify the font halfway. Even at night you have to precisely place before the display so you can see what. In my car radio is installed in the middle. One would always stop when you want to make a concrete setting. When looking only hear radio on firmly set station that's not bad, but with MP3 playback over USB that's just flying blind. Ironically, you can display even the weak dimming in 31 steps and select Beleuchtunf between day / night!
Incidentally USB: Officially you can select Folder. I have my music for Stiimmung organized thus: Classic, Pop, Rock, German songs, love songs, etc. In practice, the choice is almost impossible, because first only the title track / number is displayed and much later the Folder name.
The keys are unfortunately very small and only fiddly to use. That means look carefully while ignoring the traffic.
The manual is also valid for 9 radio, the differences will indeed pointed but overall it is very confusing, but. In 'dozens' languages