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View single post by john112deere
 Posted: Thu Feb 1st, 2018 10:38 am
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john112deere

 

Joined: Fri Nov 10th, 2017
Location: Vermont USA
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To answer the original question, though...as long as you buy the right one (there are two part numbers, one has an "E" on the end I think), it'll have the appropriate diode to plug into your four-way flat trailer plug and not blink with the directionals.

Rather than run a wire from the third brake light, I bought one of those off the shelf at WalMart and used some of the guts (diode, four-way-flat plug) to wire up the third brake light on my cap.

Worth $15 to me not to have to run a wire from the cab to the back of the truck, and have a solution with no cutting of factory wiring at all.