helm2lee

I Purchased a 2008 F150 last year and want to add factory fog lights (truck did not come with them). I installed a factory light switch w/fog lights and new bumper and lights, the truck had a fuse and relay in the fuse box and pre-wired to it from switch), but no wiring at/to the front of the truck. My question is this, the fuse (#17) is constant hot, how and where from do I wire from the fuse box relay to the front of the truck ( or is the a wire hidden in the wire loom somewhere) ?