I have not used or been around power winches on boat trailers and I am unsure how they hook to the 12v. Do you have to wire up to your battery. Can you use a "power point" style plug. I have seen adabpters for 7 point to lighter style powerpoint and didn't know if you could wire lighter type male end to winch and plug in where lights would plug in. Or is there to much juice pull on those wires.