I have a 06 with big tow pkg. I was looking through the bottom part of the grill and saw an electrical connector just hanging there. It is next to the top right of the trans cooler fan if you are standing in front of the truck. I looked around and could not find where it went, thinking it may have fallen off. As it turns out, the plug fits into an existing connector. In other words there are two female connectors for one male connector. I switched them out drove around the block and didnt notice a difference. Does anybody know what each one does? One has a purple and pink wire, and the other one has 2 wires also. One blue and I think the other is red.