2019 Audi S4 Trailer Wiring

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

Hey Jeff, I did some checking and the Malibu part number 6832001.1 is exact same as the Optronics Trailer Connector w/ Coiled Cord #OPT48NB that you referenced so this would be the correct replacement. Did you lose your current 7-way or did it get…

Hey Ron, congrats on the new SUV. To add a hitch and a wiring harness to your 2026 Toyota RAV4 Hybrid, I recommend the Curt Hitch item #C34FR62ZY and the Curt Trailer Wiring Harness item #C34FR62FT. The Curt Hitch item #C34FR62ZY is custom fit for…

Hey Mark! Thanks for your continued business. We appreciate it. :) We get questions like this a lot as it's hard to tell sometimes if you have LED or halogen / incandescent tail lights. If you look at the taillight housing and see bulbs through…

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

Hey Ricardo! Yes, the Curt Trailer Hitch Receiver #C82RJ is the hitch Curt is working on for the new 2027 Telluride. This is a pre-order since Curt hasn't finished the design. It does not include wiring. The wiring harness for the 2027 is also up…

Hey Bob. To install the ground on the Curt T-Connector Vehicle Wiring Harness item #C36PQ you'll want to find a flat metal spot near the converter. You can take a wire brush and clear away the paint to ensure you reach bare metal. Then you'll…

Hey Lucas! I measured the Buyers Products Weld-On Receiver Tube #337RT25824B in our warehouse using my digital caliper, and it has an exact outer diameter of 2.54", so I don't believe it will work with your truck's 2-1/2" receiver.…