The "S" model with the Duragrain seats and no sunroof did not come with factory installed foglights. However, the wiring harness is pre-installed from the factory. If you look under your bumper you might see the ends of the harness where the factory fogs would attach.
BTW- The factory foglight switch was located on the left side of the binnacle in the second slot from the top. Is this where yours is? Also. the factory foglight switch doesn't come with a "2" on it.
Before I installed my foglights I thought that the easy thing to do would be to buy the original foglight switch and just use the existing wire harness. However, the foglight switch was quoted at like 60 bucks from the stealership and who knows how much the lights themselves would be. If I had to guess...probably like 300 bucks for the kit. Moreover, the switch was only a momentary switch and a nightmare to hook up unless you have special relays in the circuit.
Does your switch with the number "2" on it click-on and click-off? Or is it a momentary switch that doesn't stay down when you push it?
If you already have the foglights then it's worth a shot to hook them up. Otherwise I'd go aftermarket and just re-do the whole wiring rather than try and figure out how the factory wiring harness is hooked up. I just installed aftermarket PIAA fog lamps to my ARB bumper and used the original OEM switch. If you need any further help, shoot me a PM.