Elbeau
Member
Most likely because the floor route avoids any run-ins with airbags that are in the pillars or behind the roof headliner. Another thing to check: Are you sure the cable isn't tangled in other wiring between the hatch grommets? I know that area can be pretty tight and hard to pull the cable through. You don't want to over-stress the other wires as they are often thin and control tail lights and rear cameras - things you want to make sure are working.Thanks for the tip. It was run from the floor back up through the rear door and pillar. For whatever reason, every install guide on my car has it done this way.