How to Bypass Vehicle Wiring and Run 12 Volts to the 7-way of 2013 Porsche Cayenne

Published 11/19/2014

Products Featured in This Question

Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket

(49)

$7.70

Question:

For some reason, my 2013 Porsche Cayenne GTS will not output 12v to the BATTERY CHARGE terminal on my 7-way plug. Therefore, it will not charge my trailer battery, and I cannot get my new Prodigy RF unit to work as it also needs 12v from the car to operate. Any ideas? Porsche is clueless. All of the trailer lights work normally with the Prodigy unit in place or with it bypassed. Is there a way to provide 12v to the BATTERY CHARGE terminal? Has anyone been able to get this unit to work on a Porsche Cayenne?

asked by: Wayne H

Expert Reply:

A simple way to bypass the confusing wiring of your 2013 Porsche Cayenne would be to run a length of 10 gauge wire from the positive battery post of your vehicle through a 40 amp breaker like part # PK54540 and then back to the 12 volt accessory circuit of your 7-way.

This will give you 12 volts of power without having to mess with the OEM wiring of your vehicle.

I attached a review video and installation instructions for the # TK94FR for you to check out as well.

expert reply by: Jameson C