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DIY: Fog Light Hard Wire in less than 10 Minutes! W/Headlight integration!

First off I want to give credit to spearfish25 for his write up on using the stock wiring to power the fog light. This is how i was able to

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Old 05-24-2013, 12:04 AM   #1 (permalink)
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Thumbs up DIY: Fog Light Hard Wire in less than 10 Minutes! W/Headlight integration!

First off I want to give credit to spearfish25 for his write up on using the stock wiring to power the fog light. This is how i was able to make this happen in 10 mins from start to finish. (the wiring not light install)

these are all the tools you'll need.

This install is for folks that want the fog light to come on whenever you turn your parking lights or headlights on. You can modify my instructions to add an inline switch in one of the dummy switches next to the cup holder if you choose. I chose not to at this time because I have my sub control in the center dummy switch.

So first off I didnt want to have to run all new wiring from the front of the car to the back, through the gromett, to the fog light in order to have a switch. I also like the idea of using OEM plugs if i can just because...well because.

I have the 40th with the heated seat package but you may be able to this with other non-heated seat models.

I took apart the fog light per another DIY in this forum and found that others had issue with the bolt not coming off because of so much lock-tite. One came off without a problem but the other got stuck. What i did was just got a socket on the front of the a drill and a flat screwdriver and let the nut spin. Using the screwdriver as a wedge I was able to spin the nut off by the heat from the friction of the drill spinning the nut. BEST way to get it off without frustration. I installed the fog light in the reverse order of the DIY and plugged in the OEM plug as show below.


The next thing you have to do is take of the long trip on the door jam below. Place you fingers under the bottom edge and pull straight up.

Next take the corner kick panel off. Use a panel pulling tool to gently pry it out.

You will now expose the BCM. you want to look for the ORANGE single wire at the top left of the BCM

This is the one wire that gives power through the OEM fog light plug and does nothing else. Now here is the scary part. You need to cut this wire and strip wire opposite of the white wire block

I used about 6 feet of 14 gauge wire and heat shrunk it to the orange wire

Next all you need to do is take side knee pad off and run your wire through the center console. Pull up on the cup holder to expose the wire blocks connected to the heated seat switchs.

Now here is where the magic happens! On the brown wire block look for the RED wire. This is your switched wire that comes on with your parking lights.

I didnt want to do any cutting or splicing so decided to stuff the 14 gauge wire into the wire block. there is plenty of room in there.

I then taped it down so it wont come out and wire tied everything.

Thats it! put everything back together, you're done! Rep's Rock Hand em out if ya got em'!

Attached Images
File Type: jpg OEM_installed.jpg (347.0 KB, 3385 views)
File Type: jpg tools.jpg (168.3 KB, 3274 views)
File Type: jpg long_panel.jpg (139.5 KB, 3269 views)
File Type: jpg corner_panel.jpg (227.3 KB, 3269 views)
File Type: jpg org_wire_cut.jpg (420.4 KB, 3270 views)
File Type: jpg Org_wire_spliced.jpg (217.7 KB, 3244 views)
File Type: jpg red_wire.jpg (149.5 KB, 3236 views)
File Type: jpg plugged_block.jpg (251.3 KB, 3246 views)
File Type: jpg taped_block.jpg (311.9 KB, 3248 views)
File Type: jpg user3704_pic31799_1303165282.jpg (112.4 KB, 3158 views)
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Last edited by Cbtech; 05-29-2013 at 04:58 PM.
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Old 05-24-2013, 12:23 AM   #2 (permalink)
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great DIY!!! Although your video is set to private....
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Old 05-24-2013, 12:39 AM   #3 (permalink)
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great DIY!!! Although your video is set to private....

fixed!
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Old 05-24-2013, 01:28 AM   #4 (permalink)
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Does it also brighten when the brakes are engaged?
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Old 05-24-2013, 01:39 AM   #5 (permalink)
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You could have just spliced into the taillight or license plate lights
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Old 05-24-2013, 01:50 AM   #6 (permalink)
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Does it also brighten when the brakes are engaged?
No it's just a steady light.

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Originally Posted by Grindkiezer
You could have just spliced into the taillight or license plate lights
But then that would have been a 1+ hour DIY. Since you would have to take 2 rear panels out, rubber trim, the tail assembly out, make a ground, splice both lights and then put it all back together. Not a simple process.

Mine literally takes 10 mins.


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Old 05-24-2013, 04:29 PM   #7 (permalink)
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Stickied!! awesome thanks Admins

also the heated seats still work without issue
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Old 05-24-2013, 04:46 PM   #8 (permalink)
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Good job!
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Old 06-11-2013, 10:08 AM   #9 (permalink)
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Will i need to purchase the "basic connector" wiring harness to do this mod or just the Reverse Fog light and everything else is already there?

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Old 06-12-2013, 02:46 PM   #10 (permalink)
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if the fog light is OEM you wont need to buy any additional connectors. The wiring harness is already installed in the car all you have to do is install the light and plug it in!
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Old 06-12-2013, 03:44 PM   #11 (permalink)
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Cool, sub for future reference. Thanks!
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Old 06-12-2013, 08:35 PM   #12 (permalink)
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if the fog light is OEM you wont need to buy any additional connectors. The wiring harness is already installed in the car all you have to do is install the light and plug it in!
It is not as simple as that,someone here figured it out and it is do able but it is some work.
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Old 06-12-2013, 09:22 PM   #13 (permalink)
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It is not as simple as that,someone here figured it out and it is do able but it is some work.
yes it is as simple as that.

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Old 06-14-2013, 02:00 PM   #14 (permalink)
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Just installed my fog light. I had 0 issues getting those screws off that hold the fog light in. Just used a little blow torch and heated the nuts up for about 3-4 seconds to melt the loctite and boom comes off.
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Old 06-14-2013, 03:09 PM   #15 (permalink)
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Just installed my fog light. I had 0 issues getting those screws off that hold the fog light in. Just used a little blow torch and heated the nuts up for about 3-4 seconds to melt the loctite and boom comes off.
how did the rest of the wiring go for you?
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