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Old 10-15-2012, 06:57 AM   #51
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Originally Posted by brianm View Post
I just have one question. Why not use a stand alone relay harness kit with a small discreet switch like some of the pilot kits. No wire tampering no splicing no worries no voiding warrenties.
Sure, you can do that - essentially, that's pretty much what Chaddz3 (sp?) ended up doing (basically).

As far as why you might not want to:
  • That solution will essentially turn the fog lights on and off with the external switch - not when the headlights are turned on and off (unless you wire the switch inline with the headlights - but that defeats the purposes of your argument).
  • It would be preferable to use the OEM headlight switch rather than having an aftermarket toggle switch in a brand new car - not that it won't work, but it won't look factory.
  • Ford already runs the wiring from the BCM to the front bumper - they just don't have the harness to the fogs or the harness to the switch installed - so you would be having to run your own wiring through the firewall and duplicating unused wiring that was already there.
  • There is wire splicing involved - just not splicing into factory wiring. There is also a connection to the battery so there is somewhat of a warranty concern - although in either case the modification that was done would have to cause an issue for them to deny warranty coverage.

FWIW ...
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