steve392

Im going to try and install my HID foglights to my light bar this weekend. The wiring harness that i bought with it was a universal one and not made for the lights (6" ebay hid's). THe harness would work great if the battery was on the drivers side, but ours obviously is not. I've extended the power wire that has the fuse between the battery and the relay as that was only like 6 inches long. Its now about 10 feet long. My problem is, the wiring harness has several other power and ground hook ups that i want to make sure I hoook up right. The wiring going to the switch has 1 long red power wire, does this have to goto the battery or can it goto a power source that is only powered when the ignition is on? I'd prefer that the lights not be able to come on at any time. The grounds obviously i can ground them wherever there is a good ground, correct? I hate electronics and just want to make sure.

Lethal Weapon

Here is a "standard diagram" in lighting.
If you note the 3 basic wires that go to a standardized switch as well.
The one fused wire that powers the switch will be triggered by your 12V source. I have my switches run and "triggered" a few different ways. Fog lights with parking lights (or can be triggered from the low beam).... Driving lights with high beam..... My led bed lights are triggered directly from a constant hot from the fuse box, rear back up lights also triggered from my parking lamps.
Hope it helps.

Lethal Weapon

Ok..... Looks like the pic uploaded this time.

steve392

WOW, that is sooooooooo not what is in the pre-wired harness. Here are 3 pics I took a while back when just test fitting things to make sure the lights worked.

Pic one shows the relay with the main red power wire with fuse, white wire going to switch, black covered wires going to lights.

Second pic shows long white wire and addition switch wires and light wires.

Light wires


I guess its not much different, just the wires are just cut very odd and short.

Lethal Weapon

Wow.... Yea, if you need to lengthen or shorten wires, I guess you gotta do what you gotta do.
But the relay will function the same.

steve392

i lengthened the red power wire that has the fuse attached to it. It made it about 15 feet long so i can have the wiring on teh drivers side of the truck and make it easier to route the switch wiring into the cab. I might have to extend the ground wire tomorrow.

steve392

Well i was about to get this all installed today. My extension of the wires made a huge difference. I should be able to had most of the wires out of sight, however there's one big problem. How the hell do you run the wires from the engine bay to the cab? I can't figure out anyway to do this? **** is so crammed on the drivers side with stuff compared to my 97 and 98 f150's.

Lethal Weapon

There is a big rubber plug on both sides of the firewall. They will also have a "nipple" that you can snip off, or slit it or even poke & fish wires thru. Works great to fish all my wiring thru perfectly.

steve392

out f'ing standing!! gunna have to play around with those nipples and see what happens

lucasjcdr

wrong thread.