Yeah i had the same with mine, battery went dead, now i can't turn on the radio. I always had trouble with the 'on' button though, i never turned it off cause it wouldn't come back on, just turned it down if i didn't want it on. Spoke to a mate of mine who's a mechanic n he said hit the scrapyard and get a new radio, type in the code n away ya go. Just don't go to a vauxhall garage n ask them to do it cause they wanted to charge me £250 just to take the radio out!! I just got my brother to take it out, £34 at the scrapyard for a new one n now it works fine, even the 'on' button ain't dodgy now. Hope this helps
Riley L, February 2010