So I need to install a hitch and wiring on the wife's rig. The factory OEM kit 8R0 092 115 is no longer available. I can get a hitch made by Draw Tite which compares to the factory hitch. I would prefer not to use an aftermarket wiring kit and want to know if I were to purchase the OEM wiring harness do I also need to obtain the control module as well ? I only need to have basic lighting and don't need trailer ABS braking ability.