Adding fog lights

I'm wanting to connect my fog light to my stock switch what all will I need to do I would like to control my fog lights w my stock not w after market one. As of right know thats how I turn them on w my after market switch truck didn't come w fogs I add them my self, any help would be appreciated!

Thanks in advance!
 
Just got to find out what wire on the switch controls the fogs. Did this on my crew cab, also turns on and off the running lights with it
 
Pretty sure the after market fogs already come with a relay, so like James said all you would need to do it wire it to the stock switch
 
So just go to a local radio shack or auto part store and pick one up. Mine came with one when I did it. Bought the harness off of ebay
 
Not that I know of, I usually buy the 40 amp ones for all me electric work on the truck. I think they are called automotive relays there
 
No you should be fine, I bought one hoping I could get it to work like factory and not have to run a wire to the switch. I got it off of ebay but I wouldn't waswte the time on it when you can make your own.
 
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