I have a Mini Cooper D convertible that's has a media system built into it with a sat nav radio etc. Everything works except for the picture and sound now. It's a 61 plate so fairly new however I can't get anything from this system. It happened this afternoon and I just turned turned the car on like normal but it was blank and no sound. Usually it's straight on all singing all dancing. Does anyone know whats wrong with it? Checked the fuses and they are all ok so it isn't that.