Tractor Supply company carries one that is plug-and-play. This means you don't have to cut any wires, just plug it into the light harneses on both sides in the rear.
The factory wiring harness for the trailers will plug in under the back of the vehicle in the area of the spare tire, the harness plugs into the wiring harness for the tail lights.
2006 Dodge Dakota - Where do i find the trailer wiring harness
Buy a kit at Wal-Mart, auto parts or U-Haul comes with instructions
You can find a trailer wiring harness for a Chevrolet in a Haynes repair manual. The manuals are available at most auto parts stores.
Make sure that the wiring harness is properly grounded. Baring that, there is probably a short in the wiring somewhere. A short means the two wires used in trailer lighting are touching someplace.
Trailer wiring harness part #118382 - any local Auto Parts Store should care this.
take the CD player out
under the car,behind spare tire,is the wiring harness with access plug for dodge trailer harness (optional) my came with 2012 journey
when you buy the harness to wire in, the intructions for correct wiring will be on the harness packaging
Subarus all have a connector for a trailer wiring harness built in. There is a supplemental trailer harness that you purchase from your hitch supplier and it just plugs right in. Instructions are available on-line. This one is for a 2001, but they have been the same for a number of years.
You can find a wiring diagram that shows you how to hook up a trailer wiring harness on a 1998 Pontiac Transport at most auto parts stores. A Pontiac repair manual should have the diagram in it.
you do not need the extra 7 pin if your not running electri brakes