Trailer wiring harness - JeepForum Apr 11, 2018Due to prior damage have no hitch. I want to order a wiring harness but need to know if towing package model. JeepForum > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Trailer wiring harness ^ Good build sheet link and that's the same form for the instant build sheet in the FAQ's over on the WJ forumAuthor: Wildman4x4nut Jeep Cherokee Trailer Wire Harness and Connector - Best wwwzone››Jeep Cherokee HarnessesOrder Jeep Cherokee Trailer Wire Harness and Connector online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.