fog light install
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Scikotics
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Joined: Oct 2005
Posts: 7,514
From: Orlando, FL (UCF)
Alrighty, so i'm installing my piaa foglights out in the driveway... I've hit a bump in the install. I've got the lights mounted on the bumper support beam and now it's time for the wiring. I've got the foglights hooked up, i've got the circle ends hooked onto the positive and negative terminals of the battery, and i've tapped the parking lights for switch power. I've tested it and everything turns on. I just dont know how to get the switch into the cabin. Where is there a hole in the firewall? I can't find one anywhere
please help
its tough but it's on the right side of the Tb , well the lower right.
You can get a good idea when you pop out the side mirror adjusting tabs. From there you get a general idea of getting the switch into that location.
You can get a good idea when you pop out the side mirror adjusting tabs. From there you get a general idea of getting the switch into that location.
I'd like to tap to low beam for power source, how do I do that? I have piaa 1400 sitting in garage for several months... lol.. btw, how did you mount the fog lights? 3M tape? or 2 bolts? if bolts? what size? Did you take off the bumper to drill holes?
Thread Starter
Senior Member




Scikotics
SL Member
Joined: Oct 2005
Posts: 7,514
From: Orlando, FL (UCF)
I just tapped the parking lights. the piaa fogs have a large black wire and a large white wire on the harness that end with a circular connector. the white goes to the + on the battery and the black goes to the - on the battery. the only other free white (aka not connected to any sort of connector/switch) is a thin white wire. This is comming from the switch. to do what you want, you have to find the positive wire leading to the low beam bulb and splice into it.
I drilled 4 holes into the bumper support beam and now the lights hang in the lower center grill. my driving lights also came with an adhesive pad in the shape of the bracket that holds the lights, so i used those also. iirc i used a 5/32 drill bit.
I drilled 4 holes into the bumper support beam and now the lights hang in the lower center grill. my driving lights also came with an adhesive pad in the shape of the bracket that holds the lights, so i used those also. iirc i used a 5/32 drill bit.
The grommet (sp) can be pierced with a small pocketknife. You don't want to loosen all that tape around the grommet. Just poke a hole with a pocketknife and then insert your switch wire through the firewall. The grommet is that plastic sleeve where all the wires run out to the engine bay. They have two, one on each side of the dash. Obviously you want to poke the wire through the one on the driver's side. What I did to make it easy to get a wire through, insert a 10 gauge spare wire through the hole that you poked from under your steering wheel, then tape the fog switch wire to the spare wire, then pull it back in slowly. That is the easiest way to get the wire back in.
use some common sense and poke a whole on the side of the grommet and not in the center where all the wires are. You dont want to slice any wires up. If you poke through the edge of the grommet, no wires are there, its just extra rubber on the side. Make as small a hole as possible so that just 2 wires can be pulled through.
I just re-read your post and you said you hooked up the negative (ground) wire to the battery? You shouldn't do that directly. That ground wire should be hooked up to a grounding point. There is a headlight grounding point on the frame of the car on the left side of the car behind the left headlight. You have to take off the splash guard to see it. Just ground the negative to that point and you should be ok.
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