2021 Audi Q7 with factory Tow Package Brake Controller

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…

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…

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

If your vehicle has a factory brake controller plug, you can simply use the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers – Ford, Item #3034-P, which will connect to the vehicle plug and the brake controller. On the new E-450…

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…

For your 2024 Nissan Frontier I recommend the Redarc Tow-Pro Liberty Brake Controller #RED24FR. I like the Liberty because it is simple, reliable, and looks great in any vehicle. The main unit installs behind the dash, so only the control knob will…

Yes, David you are correct. The Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness item #RED82CR is exactly what you need. Since your 2024 Toyota 4Runner came with a 7-way connector, the plug and play adapter included with item #RED82CR will…

Hey Mark, thanks for reaching out, and good question. Both the Redarc #RED98CR and #RED82CR are correct for your 2022 Toyota 4Runner. The only difference is the #RED82CR comes with the universal mounting panel for the knob, while the #RED98CR does…

Hey John, thanks for reaching out! If the 4-Way on your 1996 Ford F-150 is from the factory then the only wire splicing you'll need to do is with the Adapter #37185, which plugs into your 4-Way and then you'll connect the rest of the wires to…

Hey Lucas, It looks like both the Redarc #RED72CR and #RED68CR are going to include the same wire harness #RED99FR, but the #RED72CR is also going to include some mounting panels to make mounting the control knob into your dash easier so I'd go…

Hey David! There's no difference other than the sale on the Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness -item #RED72CR or item #RED68CR. Both of these include the Tow-Pro Liberty and the plug and play adapter you'll need for…

Hello Frank, thanks for reaching out. Sounds like typical Ford for you lol. We do have a plug-in brake controller option for the 2025 Ford F-250. For that I recommend the Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness #RED67CR since it…