Audio system, mobile phone, car radio and front panel

The audio system (100) has a radio, a mobile radio device (10), a display (14) for displaying information for the audio device and/or the mobile radio communications device, e.g. a mobile telephone and a number of operating elements (16,24), for operation of the radio and/or the mobile radio device. The latter is removable from the audio system together with the display and/or the operating elements. Also included are Independent claims for the following: (a) a mobile radio device; (b) an audio device for an audio system; (c) a front panel for an audio device