I just installed 12V DC lights in my trailer to run off the Auxillary Power Lead from the trailer light plug. However, to test it, I had to plug my Chevy up to the trailer because my '94 Ford F-150 did not get power to the 12V+ power lead in the trailer plug harness. Upon further head scratching as to why that plug does not have power, I tested the 12+ power lead on my '03 Ford Excursion and low and behold, it does not have power either. Has anyone else experienced this with their Ford Truck? Is there a wire lead somewhere that needs to the connected to the battery or a fuse installed that I am unaware of. I have looked in the manuals and cannot find anything referencing this 12V+ power lead. Any suggestions?