I'm installing a small XM radio in "stealth" mode up front with the rest of the stuff behind the spare tire flap. When I tried to plug the little transmitter thing into the cigarette lighter I got no power. Looks like it is a different configuration than the outlets in cars today. Does anyone have any ideas as to how to get this to work? It's a great location for what I need to do, has the built in transmitter and everything I need if I could just get power from that &#@! lighter outlet.