7 Pin To 4 Pin Trailer Wiring. Take your wire cutters and snip through all wires in the cord close to the plug. This accounts for three of the colors in the wiring harness.
I see an adaptor on Amazon. Is it an easy fix to convert it, is there an adapter or do I need run additional It does attach to the battery and there is a wire for the trailer brake controller that runs through the engine bay to under the driver's side dash. Cut the four-pin plug off of the trailer harness.
The circuits are for left and right brake lights and running lights.
Both trailer wiring sockets include integrated covers to keeping water, grime, and salt out of the electrical contacts.
Now grab the box cutter and use it to gently slice through the outer rubber shielding. Turn on the running lamps of your vehicle. I assumed the blue and purple were the data pins because I noticed they were wrapped.