Connection 12 Volt Power Wire for 7-Way on a 2009 Dodge Journey

Updated 05/11/2015 | Published 05/09/2015

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Question:

Hello I have a 7 pin plug on my tent trailer I want to install wiring on a vehicle for the trailer I have done all of the but the aberration charge wire where in the vehicle do I plug this to? And what do I need

asked by: Ross

Expert Reply:

Whether you are talking about the 12 volt power wire from a 4-Way powered converter or the 12 volt circuit from a 4- to 7-Way adapter, such as # 37185, they both connect to the vehicle positive battery terminal.

It sounds like you are talking about the 7-Way so for it you will need a 40 amp circuit breaker, # PK54540, and enough wire, # 12-1-1, to reach from the front of the vehicle to the rear. You would change the number in the quantity box on the wire page to the amount of feet needed. I recommend 25 feet because its better to have too much than not enough.

There should be a black wire if using a 4- to 7-Way adapter. Otherwise the 12 volt circuit is in the 11 o'clock position at the BACK of a 7-Way where the wires attach. One end of the 12-1-1 wire attaches to that black wire or in that 11 o'clock position.

Then you will route the wire under the vehicle, avoiding areas that may pinch or burn the wire such as exhaust and suspension components. Route it up through the engine compartment to the vehicle battery. The wire will connect to the AUX post of the circuit breaker. Then using left over wire attach one end to the BAT post and the other to the positive battery cable.

I also recommend wiring kit # HM51020 which comes with various connectors, ring terminals, clips, ties, and tools that you will need.