The MMI screen on my 3.0 2005 TDIQ is black - no radio - nothing! I have a horrible feeling that I did this when checking the fuses in the front fuse box (I was trying to find the fuse for the brake lights that were mysteriously stuck on - problem now solved when I replaced the brake light switch!). The engine was off - but the ignition was on - such a stupid thing to do in retrospect! . Could I have blown some electronics or just a fuse (which one and where?). Any help welcome! Many thanks in advance!