Changing radio band
Swipe to show the app view in the centre display and select the preferred radio band (e.g. FM), or open the driver display's app menu using the right-hand keypad on the steering wheel and make your selection from there.
Changing lists within the frequency band
Press Library.
Select playback from Stations, Favourites, Genres or Ensembles1.
Tap on the desired station from the list.
Favourites - only plays back selected favourite channels.
Genres - only plays back channels broadcasting the selected genre/programme type, e.g. pop or classical.
Changing stations within the selected list
Press on 
or 
under the centre display or the steering wheel's right-hand keypad.
or under the centre display or the steering wheel's right-hand keypad. The highlight moves up or down one place in the selected playlist.
You can also change radio station in the selected list via the centre display.