I have a trailer and it has an extra hook up inside the car and it blows the fuses left and right but if i unhook it for by the brake paddle the brake lights come on but the horn and wipers come on so how do i un hook it to work without the engezier piece inside the car.
Any extra outlets would only be used depending on how your`` trailer is optioned.do you need a brake controller?do you have back-up light?do you need to charge a second battery?these would be the only reason to need the extra plugs.
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