The kit uses a T-tap connectors to hook into your Super Duty's parking light functions, so while it is more of a hassle than the halogen truck's Plug-and-Play harness, it's not overly difficult by any means. Since it hooks into the parking lights, the light kit will only come on when the parking lights are active, which is when you have the headlight knob turned to the parking lights or when the low beams come on (either manually or automatically). They do not have a true DRL function unless you tie them in somewhere else that has constant 12V power. The wiring harness is fairly basic, so you could tie them into an upfitter switch if you're willing to cut off the T-taps and extend the harness.