How To Wire Motorcycle Trailer Lights. By law, trailer lighting must be connected into the tow vehicle's wiring system to provide trailer running lights, turn signals and brake lights. This is accomplished by tapping into the tow vehicle's electrical harness to transfer power to the trailer wiring system.
Today there is no reason to ever cut, strip, or harm in anyway the original wiring harness on most cars. Doing this resulted in every time i would push the brake it would light the turn signals and vise-versa. We carry lots of kits so you'll.
Slide the bolts or screws through the holes in the trailer.
Look for broken wires connecting to your trailer lights.
I've read thru many posts here and realize it's not as simple as it may seem. To legally tow a trailer, vehicles must be wired for trailer lights. How to video on wiring LED lights for your motorcycle.