Just checking here... is yours a US box or Canadian Box?
I just got my Ebay "OEM" looking fogs installed last week, and with my box being a Canadian vehicle, there is no factory OEM wiring.
My shop tech had to use the wiring that came with the ebay purchase and connected it straight to the accessory fuse. 4 hours shop time.
Mine now runs independent of the headlights.
As long as the acc-power is turned on (i.e. one turn on the key , radio is on) , I can control my fog lights through the supplied switch.