Since your 2010 Jeep Commander has the factory brake controller wiring the Redarc Tow Pro part # RED44FR will work well and install easily. Basically it will just wire directly to the vehicle brake controller wiring you have installed.
The black wire is for the 12 volt power, white is ground, blue is brake output, and red is stoplight circuit. view full answer...
For your 2008 Jeep Commander, the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles, part # HM56205 is what you are looking for. This harness easily plugs into your vehicle's existing wiring, located behind your Jeep's tail light assemblies. No cutting, tapping, or splicing is required. If your motorhome uses a standard 7-way connector, you can use coiled adapter # 787196 to connect to the 4-Way on # HM56205.
With this harness hooked up for flat towing, your Jeep's lighting system... view full answer...