Why Does Trailer Wiring 118754 Connect to Vehicle Battery Instead of Aux Circuit

Question:

Is there a reason the power for the wiring harness # 118754 for a 2018 VW Atlas cant come from the rear aux power receptacle cigarette lighter instead of running the wire to the battery?

asked by: Matt T

Expert Reply:

This is a great question Matt, so the reason trailer wiring kits like the # 118754 connect to the vehicle battery directly to draw power is to protect the wiring of the vehicle. Trailer wiring shorts can end up creating shorts on the vehicle wiring which can damage the circuits. By drawing the power directly from the battery this prevents that from happening.

expert reply by: Jameson C