I added a back up camera and monitor to an existing switched power lead which I tapped off of a wire back in the fall of 04 when I purchased my 2500 Siliverado crew cab,I appearently blew a fuse,no power and now the Air bag idiot light is on the upper left side of the instrument cluster, I did not see any reference to a fure to cover the air bag in the manuel,Can someone tell me what fuse or what to check? Is there a easy source for switched power? I believe both cigerette plugs are live all the time , Thanks in advance