Apologies for a kind of strange question, but I've been unable work this out through the infotainment system settings. When I give a voice command to switch on radio, E.g. "play BBC Radio 2" Google says "playing BBC radio 2 on your car radio", but always chooses the FM band, which in my rural area has no reception, so I end up having to manually select the DAB band. That goes for any of the BBC stations for example.

Does anyone know how to have this default to DAB for any station?