Do you have upfitter switches? I cut the fog light wire near at the fuse box and hooked it up to the No.1 upfitter switch for extra lighting on our dark and lonely highways...not to mention the amount of animals that pop out of the ditches. My truck is an '05, but I assume the newer ones aren't any different when it comes to fog light wiring.
2005 F-350 CC, LB, 4x4, Dually, 6.0 Powerstroke, Torqueshift, 4:10 Gears. Gooseneck and rear pull hitches. "Truck Covers USA" roll up aluminum tonneau cover. Putco Boss Running Boards. Aluminum finned diff covers. Bilstein HD shocks. ProComp steering stabilizer. XRF ball joints. NC Hornet CCV mod. RCD egr delete kit. AirDog fuel system. Strictly Diesel's regulated fuel and coolant return lines kits. Amsoil oil bypass (by NUC Motorsports) and homebuilt coolant bypass kits. CFM intake elbow. ARP head studs with factory gaskets and all upgrades. MBRP 304SS "Cool Dual" exhaust system. SCT Livewire tuner with pyrometer. Autometer 'A' pillar gauges (Boost/Trans temp/Pyrometer/Fuel Pressure). 850 CCA Motorcraft Batteries. Using Rotella T-6 synthetic oil. Upgraded degas tank and cap. Hayes deep aluminum trans pan. GoGo Diesel modified direct clutch solenoid. Retro Solutions HID head and fog lights. High idle mod. Jimmi-Jammers. Many other custom features.