Hey guys, I'm getting a buddy to help me install some Hella 500ff driving lights on my bumper, but I have a couple wiring questions. First off, can I use my stock fog light switch (pictured, switch on right) for the new driving lights? I would much rather do this then drill a hole and use the hella switch. Right now the stock fogs don't work and the switch doesn't light up. I don't know which fuse controls the fog or how to get it to work. The diagram on the back of the fuse lid tells me there needs to be a fuse where there is no plugin so I'm at a loss. I am a wiring newb. Has anyone had experience installing these lights?

Do you have a complete wiring harness with a relay for the new lights? If yes, the easiest way would be to just run wires from the relay to the factory switch. That way the factory switch turns on the relay which will turn on the lights.

The Hellas come with all the wiring and a relay. Does it look like I am missing something from the fuse box that would make my current fog lights inactive? They do not work.

Yes, you are missing some relays for the factory fogs. There's some threads on here of how to get factory fogs to work. As far as your Hellas, just cut off the hella switch and run wires to your factory switch.

Cool, thanks. Hopefully I can just put the relay that came with the Hellas in the fuse box where the original fog relay was supposed to go. It seemed like there was nothing under those other slots though? Surely they aren't dummy slots.

Looking at the one picture in your profile the fogs on the bumper are not factory. Factory fogs are mounted in the lower part of the bumper corners. Yours aren't even cut out. It's likely the PO installed the factory switch to run the aftermarket fogs.

Most likely there's a wire running from the interior fuse block, to the switch then from the switch to the lights.

Got everything wired and the lights worked. Went to start it and a fuse blew and I HAVE NO POWER. HELP.

It's not cranking and I don't see a fuse blown?

Wow, battery must be old. It was dead....I'm a dummy. My buddy and me both thought it was a fuse because it didnt turn over at all.

Gotta be careful when working with lights, you'll drain the battery in a heartbeat. Did the same on mine.

Strange enough it was corrosion on the positive cable. Dipped it in ginger ale and it started. Got lucky. Thought it was a bad battery.

Cool.

I just replaced my battery cables and battery in advance of lights. I've known for the past year they were toast and finally my battery died. I wasn't about to install a new battery with crappy cables. So I replaced everything and now I'm deciding on which fuse/relay block to install and where to install it so I can get my lights on.

In the past I have always just ran power from an empty slot in the fuse box to the switch and from the switch to the lights. Always used fuesable links but not relays. Now that I'm older and wiser I feel the need to make it more complicated. I might add that I never had any problems in the past with the way I did it.

You talking headlights or fogs that won't come on?
New cables are one of those "old car" things that really I knew nothing about really. Luckily my buddy had experience working on cars.