Hello, and welcome.
Were I doing it, I would run better wires than are likely to be in the factory harness. I would round up some 12ga wire, a fuse box (inline), a 40A light/horn relay, some 14-18 ga wire, a couple connectors, and your switch of choice - depending on switch choice it should be <25$ at a parts store.
Run the 12ga from the battery to the fuse within a foot or so, then to the supply on the relay, then from the load on the relay to the light. Run the 14-18 from an extra accy position in the dash fuse box to the switch, then on to the control on the relay. Run another to ground from the grounding post on the relay (and switch, if illuminated).
If they are 100W bulbs, they will pull about 15A (assuming 2), which a 14ga can carry (up to 17A generally). I like to wire big, just to make sure. If they are 55W, they will pull much less and a 14ga becomes serious overkill. I'd stick with 14 or larger, though.
Without specifics on which Jeep you have, what wattage the lights are, how many, etc it is more difficult to help ya