I have a 2006 Ram 1500 with a 3.7 liter V6 and recently installed a fog light kit. The kit I purchased was a factory mopar kit that should have been a plug and play deal. But as luck would have it, instead of having different front bumpers and the same wiring harness like other vehicle manufacturers, Dodge uses the same front bumper and different wiring harnesses. So the kit had to be modified. I had to cut the plug off of the harness that the lights came with. Then I found which wire gave power to my low beam lights and spliced the fog light power wire into it. Then I grounded the fog lights to the frame. Also in order to replace the light switch you have to take the dash apart.