Holty

iTrader: (6)

im installilng my e=fans right now. i have a switch i want to use that will allow me to turn the fans on when the trucks ignition is not on. my switch has 3 prongs on the back, and a LED light on the front. can someone explain how to wire up the switch? thanks.

munchman

one prong is power in one is power out and one prong is the ground for the light in the switch hope this helps

Holty

iTrader: (6)

yes, thank you, that helps alot. what should i use for power in and power out? i'm not sure i understand?

munchman

how exactly does the nelson harness work. i've never hooked any fans up with one.

munchman

if you want to be able to turn the fans on with key of you should be able to hook the power in wire for the switch to the battery with a fuse in between and hook the power out from the switch where the harness plugs in the fans with a diode to make sure the power goes to fans and not back to the relays then ground the switch just make sure to splice into the hot wire on the fans

Holty

iTrader: (6)

well, i don't have to splice any wires going to the harness or to the fans. the nelson harness has a wire dedicated just for this switch i'm installing. i just didn't know how to wire the switch because it has 3 prongs on it. so what i'll do is connect a 12v switched to 1 prong, the lead wire from the nelson hard to the 2nd prong, then a ground on the 3rd prong.

munchman

i didn't know the harness had a wire for power from a switch. hope everything else works out with the install

Holty

iTrader: (6)

got it all hooked up, thanks for the help.