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Old 07-23-2014, 01:25 PM   #1
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Join Date: Jul 2014
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Trailer Brake Light Adapter Help


This is my first post to this forum so I hope I'm in the right place. I just bought a 2010 Flagstaff popup trailer and I'm trying to find an adapter that will adapt the 7 pin round (6 pins and a big thing in the middle) female cable connector from the trailer to a 4 pin inline on my truck.

Anybody done this before?

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Old 07-23-2014, 02:06 PM   #2
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Welcome to the forums!

There is a reason for the plug. Usually trailer brakes and battery charge line. Not sure what the laws are in your state about trailer brakes.

Here are a bunch of adapters.
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Old 07-23-2014, 02:56 PM   #3
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You need to have your truck/car wired for the 7 pin connector. The 4 pin just won't work to activate the brakes, even tho' they do make adaptors that will work the lights.
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light, trailer, brakes

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