Quote:
Originally Posted by sundancer 87
The red cable will be positive and will have the larger end terminal. You'll want to connect it first and then the negative cable.
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We hope....
Follow the cables and see where they go. Typically the black is the ground and it will travel a short distance and be fastened to the frame of the trailer. The red typically will be the positive and will go to a fuse block or circuit breaker, some times right on the frame near the battery box, but there will be a line coming out of it going towards the converter.
Aaron