I have a 2003 F150. I want to order the lower valance and the fog light and i want to hook it up factory style. I found the fog cables behind the headlight that connect directly to the fog but when i remove the light switch cover on the dash i find a third set of cables that are not attached to the switch. Do i need to buy a switch that includes the 3rd set of wires or is there another way to hook this up.