I was thinking about this. There is another way. If towing a LED equipped trailer then the non powered module could be used and three 1 amp blade fuses could be installed in the three hot wires in the 4 wire connector to the trailer. That might provide some protection against a short in the trailer wiring. I looked it up and the max draw on a utility trailer is going to be less then 1/2 amp on a brake light circuit. Less on all the tail and marker lights combined.
