My turn to ask a question.... If I have the radio on or music playing from the SD card and I want to switch it off, I would assume from the manual and symbols next to the switch I make a long press on the round OFF button. So far very simple and straight-forward. But if I then decide to change a car setting using the MMI and press MENU, up pops the screen and the radio or media that I last used starts playing. I know I can quick press the OFF button to mute it or turn the volume down but is their a way to actually turn the radio/media OFF completely so that when the screen pops up nothing is playing at all.