Installing Brake Controller on a 2004 Dodge Ram 2500 that Does Not Have Factory 7-Way

Question:

my break controller pluged right in an powered up but there is no wiring at the back of my truck to hook up the blue and black wire, is it possibly in the back wiing harness hid from sight

asked by: Chris

Expert Reply:

If your 2004 Dodge Ram 2500 did not come with a factory installed 7-Way trailer connector then you will need to add one using # 37185 (provided that the truck came with a factory 4-Way flat trailer connector).

The blue wire that is output to the trailer connector at the back terminates in a connector located under the driver's side wheel well. you would need to splice into that wire using # 12-1-1 (sold by the foot) wire and route it all the way back to the blue wire of # 37185.

For the black wire you would need to run another length of wire to the front of the truck and connect to the positive battery terminal via a 40 amp circuit breaker, # PK54540. This is the 12 volt circuit for the 7-Way.

expert reply by: Michael H