Use the relay. Wait, let me say it again. Use the relay. Relays are your friends. Relays stop your aux fuse from blowing and the aux wires from melting. The relay allows power to pass to the lights only when you want them to have power. Like if you only want the lights to have power when the parking lights are on, then wire the switch side of the relay to the parking lights. If you want them to only come on when the high beam is on, then wire the switch side to the high beams. Or if you want them to come on anytime the truck is running, then wire the switch side to the aux power. You get the idea.

Your power for the lights should come straight from the battery. This makes it easier when drawing that much power. You don't want the power running through the truck. The shorter the power wire, the better. A couple of feet doesn't make much of a difference.

Let's assume 14 volts for the truck. 460 watts/14volts = 33 amps. 14 gauge wire is rated for 32 amps plus you want a cushion in place so you should be using 12 gauge wire which is rated for 41 amps.

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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
All mod descriptions and pictures © 2007-2009 by Toxarch. They may be copied only for personal use and the mods may be done for non-profit only.