I've been having a problem with mine today. Maybe I wired them up wrongly but I'm sure it all worked ok before. Today they don't seem to want to come on properly. I think the guy who sorted out my mobile phone car kit may have done something to the wiring. I need to go check it later but it is raining at the moment.
also, the ash tray, is there supposed to be a light in there? I seem to have a light behind the dash in that area that looks like it shouldn't be there. Maybe the ashtray light has come loose or something?