If you don't want to tap into your 2018 Jeep JL Wrangler's wiring to tow and your top does not have any metal for our magnetic lights, then we have one other option available for you, the Demco LED Light Bar for Towed Vehicles w/ Wireless Transmitter # DM36MV.
This light bar uses suction cup to attach to the roof or trunk and has a secondary connection by straps. This may work for your soft top, but I would suggest finding something with a suction cup on your roof first to test how well... view full answer...