OK, I redid your drawing in case you really wanted to know how a single throw relay works. In the drawing I left it wired to the aux power which means the lights will come on anytime the truck key is turned. I prefer to wire the switch side to the headlights so that the KC lights would turn off when the headlights turn off. That way you are sure not to drive around during the day with them should you accidentally hit the switch.

Pins 85 and 86 can be swapped when wiring. Also the switch can be on the ground on pin 85 if that is easier to do.

Edit: One more thing, make sure the relay is BIGGER than a 30 amp relay. You don't want that thing frying the first time you turn them on. If it is 30 amps or less, you can use one relay for each pair of lights. Simple to do. Let me know if you need a drawing for that.

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2007 SR5 Crewmax 5.7L 4x4
Mods: nerf bars, Truxedo tonneau, radar detector power, 3M clear bra, fog lights, black billet grille, rear differential breather, parking sensors, Line-X, power tailgate lock, hood safety latch mod, one off driving lights behind grille, Pioneer NAV w/ OEM camera, Flowmaster 50 SUV dual/dual, blue LED dash lights, Volant CAI, Llumar tint, CompuStar Pro alarm, ProComp 6066 20" wheels, Cooper Zeon LTZ 275/60/20 tires, OME HD coilover lift, Firestone helper air bags, stereo cable lock, Tekonsha P3 brake controller
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