You probably need to take your truck to a shop that can do trailer wiring. If your trailer has a 7 pin head you will most likely need a brake controller installed if your truck isn't already equipped with one. If you only have a 4 prong plug I would think you don't have a controller.
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2011 Eagle 330RLTS with just about every option.
2017 Silverado 1500 4x4 5.3 with tow package. (no, we don't tow the Jayco with it.)
2018 Surveyor 265RLDS well equipped.
Life in the slow lane is still life.
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