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Old 07-30-2005, 10:45 PM   #1
Scooby Newbie
Member#: 91920
Join Date: Jul 2005
Location: Honolulu, Hawaii
2007 WRX Ltd Wagon
Garnet Red Pearl

Question Factory Fog Switch w/after market lights

Here's the background: I ordered the JDM garnishes for my 05 so that I can fit some large round fogs instead of the new mini factory fogs. I'm having my bumper beam cut to fit. As everyone knows, the car is pre-wired for fogs. I figured I could fit some Hella FF200s or PIAA 540s in the opening. I also made the assumption that I could use the factory fog switch in the dash to keep it looking stock on the inside. I called the dealer today to order a fog switch for the dash. He told me he won't sell me one because there is no way the factory pre-wired set-up will work for after-market lights. Can this possibly be true?
I thought I would do my splicing in the bumper and use all the pre-wired gear from there. Also, I know there was a forum a while back about wiring fogs so they aren't only on with the high beams. I can't find it now. Does anybody know where that info is?
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Old 07-30-2005, 11:39 PM   #2
Scooby Newbie
Member#: 89757
Join Date: Jun 2005
Chapter/Region: International
Location: Chiba, Japan
2004 Impreza STI
Black & dirty


There should be no reason why non standard fogs can not be wired to factory wiring set up. I just fitted standard fogs to my '04, fogs were used, switch and relay bought from Subaru dealer. Basically plug and play.
Difference with non factory fogs will be mounting point and plug connector.

Also my standard set up allows the fogs to be switched on whenever lights are on, that is side light, headlight and main beam OK.
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Old 07-31-2005, 12:02 AM   #3
Scooby Newbie
Member#: 91451
Join Date: Jul 2005
Location: Vegas
03 WRX


Just watch the wattage of the replacement lamps. Keep them @ 55 watts.
I use Hella 500's in my 03 wrx and I did them with the fatcory plug off the stock lamp. They plugged right in and are perfect.
By default the fogs can come on with low beams, and go off with highs.
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