2019 Jeep Wrangler Unlimited T-One Vehicle Wiring Harness Yes, the installation of a trailer wiring harness will be different for a 2019 Jeep Wrangler MOAB when compared to a 2013 Jeep Wrangler MOAB but not by much. Instead of just plugging in one connector behind the driver side tail light you will need to plug in a connector behind the passenger side tail light as well, run a power wire to the Jeep5/5(29)Category: Custom Fit Vehicle Wiring Jeep Lighting Wiring | Quadratec Jeep Lighting Wiring. Filter Results. x. Sort by. Sort. Brand. American Autowire (3) Apply American Quadratec Back Up Light Harness for 07-18 Jeep Wrangler JK. $29. 5 (2) American Autowire American Autowire Classic Update Wiring Harness for 76-86 Jeep CJ5 & CJ7. $831.