The possible harness in question, located to right of coolant reservoir. On my vehicle, wiring exiting connector to rear are not chafe protected. Mine had wires touching/rubbing on firewall, so I bent wires away, to avoid any contact.
My 2024 Big Bend 2 door was not ordered with a tow package. I needed the factory tow module for trailer lighting and wanted an extended receiver, to allow clearance for a folding bike rack behind spare tire.
TOW MODULE INSTALL: I found a used module on Ebay for $120. The factory wiring...