Hi. I was letting my bro fit a new sub in the back of my car (bad idea!), it should have been a simple job, just the remote wire etc to the stereo, which is a Blaupunkt Viking TMC. Up until about half way through the mass operation, the radio was working, then suddenly, nothing, no lit display. We presumed it was the wiring wrong, but i tried my old radio, and it worked fine. Can anyone tell me if my Blaupunkt has some kind of auto shut off after being unplugged so many times, and how do i make it work again? It usually just works on a key card. Any help would be appreciated. Rich.