so i have a 2012 ram 1500 st

i have the bumper switch fog lamps already mounted.. but i need to know what wire harness do i need? if someone can help me, im having difficulty deciphering between the years and what to do.

or if i got the wiring harness from the ebay mopar kit, would that work with the oem set up???

i did pick up the fog light jumper set which connects the bulbs... but i am trying to find more information if i should return it and buy a different harness.. or can it be spliced and added