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Old May 17, 2011 | 02:33 PM
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aztec
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lighting help

I would like to install a extra set of fog lights on my 09 xlt that come on with the fog light switch . They came with a 10amp fuse can I splice them into the existing fog light wireing or is it a complete over overload. any help would be
appreciated
twoone
 
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Old May 17, 2011 | 03:17 PM
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10A at 12V = 120 watts <--This is the total limit for your current set-up.

Subtract existing wattage from 120W. As long as your 'new' fog lights are below that number, you're okay. If they're more, you'll need a 2-pole 15A or 20A relay (depends on the size of your new foglights); coil wired to the switch and lights wired to the relay contacts.
 
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Old May 17, 2011 | 04:52 PM
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aztec
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Question Atten. Shotguz

I guess am a little stumped but could explain it a little better to me or a drawing? couldn't I gust increase the fuse size ? and since the new lights are sitting on a bully bar one on the left and the other on the right this places them next to the existing factory fog lights. Each new light has its own ground and then just splice its power wire to each of power wire that goes to to each light?
Thanks for your help,
aztec
 
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Old May 18, 2011 | 05:38 AM
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Fuses protect wire from burning. Change the fuse and the the wire will burn before the fuse burns...

Switches are also rated in amps. Change the fuse and the wire and the switch will burn before the fuse or wire burns.

It's all about current and heat. Too small wire results in heat. Heat increases the resistance of the wire, which causes more heat, which equals fire.
 
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Old May 18, 2011 | 10:08 AM
  #5  
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aztec
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Question Shotgunz

OK i understand what your saying. my truck is not at home right now its up in the mnts. and will be home next week and i want to complete the wiring then Right now i do not know what the stock protection for the existing fog lights is. if it is 10 amps and the new lights came with a 10 amp fuse that would be 110 for each set correct? so does that call for a 20 amp relay?only and do i tie it in at the fuse block?and what about the fuse size?. I have lots of what you might think are a lot of questions but i want to try and understand what am doing.TK's for working with me.
aztec
 
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Old Jun 23, 2011 | 12:24 PM
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Problem Solved: installed relay and used existing fog light wiring for trigger.
 
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