UHaul Tailight Wiring - How is it supposed to be? - Page 2 - Fiberglass RV

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Old 01-21-2013, 11:37 AM   #15
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Name: Sean
Trailer: 1984 Uhaul CT 13
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Originally Posted by Thomas G. View Post
It worked out great. I combined the two hot wires on the amber socket so my turn signals are extra bright. (It energizes both the low and high filaments).

You could use the 5th connector to charge your battery when you drive. If you do it, use 10 gauge wire as a minimum.
Nice! I'll look into getting one of those. I was thinking of maybe going to a 7-pin at some point. Even thought I don't have brakes, I was thinking the aux power for charging and eventually a backup light behind the trailer would be nice additions.

I do have one question since I have only done wiring on boat/utility trailers before. Did you put a fuse on the aux power line on the TV side? If so what size fuse?

1984 Uhaul CT 13
TV: 2011 Kia Sorento V6, 2001 Mazda Tribute V6
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Old 01-21-2013, 12:10 PM   #16
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Name: Kinga DeRode
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Originally Posted by knighth001 View Post
...... Did you put a fuse on the aux power line on the TV side? If so what size fuse?
When I wired up my TV to charge the trailer I used a small 30 amp relay and a 30 amp circuit breaker in series. That way it disconnects automatically when the TV is not running and if it should get shorted out, it will pop the breaker before it over heats the wire.

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