I have been trying to hardwire my satellite radio to my 08 Accord EX without success. have attrached the transformer (12v to 5v) hot lead to a mini fuse tap installed in one of 2 empty fuse slots. attached ground to one of studs coming through firewall but I can't get any power. I know the tranformer works because I tested it on my boat where there is easy access to 12v and ground but the car has be baffled. Is the fuse tap hot? do I have to do something to activate it ? What am I missing? Captstef