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Old 01-13-2020, 10:01 AM   #3
flybouy
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Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,714
Wire length has been explained above. Connecting to a pass thru light is a bad idea, that wire travels back to the distribution panel, thru the fuse, and back out of the panel all the way back to the battery.

Why not just take some 14 gauge wire from the battery with an in line fuse holder to the controller mounted in the pass thru?
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2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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