Had the dealer add them as part of the deal. I watched a YouTube video about it before deciding I’d have the dealer install them. I did pay for the labor but not the parts and It was worth paying the dealer the labor. The fixtures are easy. It’s fishing the harness back to the cab that’s a challenge. They plug into the fuse box under the dash and, since the kit comes with the factory harness, the route you have to follow with it is predetermined. The harness runs along the driver’s side frame. If you have them, the wheel well liners have to come out, the in floor storage box has to come out and you have to fish the harness up the firewall to enter the cab at the right location. I’m glad I added them. I’d do it again. But I’d never tackle a self install project.