Any-one had this happen to them? Stopped the car today with my rns-e radio on. Switched off engine and removed key. Radio keeps playing, but with the set totally dark, no illumination at all! No response from any control on the sat-nav or wheel! No volume, re-boot, nothing. After about 5 minutes it stopped playing, so we locked the car and went shopping. Came back a couple of hours later and everything was normal! Ghosts in the machine???