Your lug pattern is 5 on 5 1/2, The same as pre 97 F150s, Jeep CJs, Dodge 1500s, and a few others. The stock Ford wheels will not fit though, the hubs on the Kia are bigger and the center hole on the wheels are to small. I have been told that Dodge 1/2 ton wheels will fit though I'm not sure. If you find a 16" wheel (after market or some factory wheel) with the right lug pattern that fits over the hub it will work on the Kia. Try to find one as close to the Kia back spacing to keep you tires from sticking out unless thats the look your going for.

Hope this helps, Dennis