Steering Wheel with Buttons
| key | Position | Operation |
 | left top left | phone |
 | left top right | mute |
 | left down left | hang up |
 | left down right | switch between Audio-sources |
 | right top left | Next Titel |
 | right top right | previous title |
 | right down left | incr volume |
 | right down right | decr volume |
