You'll need the different light switch, as Thomas said. You'll also need a relay for the power distribution center under the hood. And finally, you'll need a small wiring harness that connects the lights to each other and plugs into a harness behind the bumper (the plug is already there even if your truck came without the lights). I didn't order the lights on my truck, but I added them later. I bought the brackets, lights, and harness from a friend. Then I got the switch and relay from the dealer. Took the bumper off and carved out the holes (sight shields) and put it back together. It was very easy, and it looks like the truck came with them.