I\'m going to then run that 4 wire trailer loom through the drain hole located at the bottom of the spare tire sump. Your going to have to separate the wires so that the loom becomes round and not flat. Make sure you cover the wires in a plastic loom cover or install a rubber grommet so that the wires don\'t fray and short out. Update- I had to drill out the sump hole to make it larger and used 1/4\" plastic loom harness covering. Then run the loom through the front grill to the bumper trailer connector. Gene Fisher has posted an alternative way of hooking up VW towing lights. That album can be seen at http://www.gmcmhphotos.com/photos/showgallery.php?cat=4728&ppuser=7