If you've ever been a regular puller of trailers, you've probably found yourself staring at the trailer wiring plug wondering how you're going to find the patience to get it fixed and get back on the road. Trailer wiring can be very frustrating to troubleshoot. Hours can be spent with a standard test light trying to match wires to lights to problems. We recently tested a tool that might make things a lot easier when it comes to trailer wiring. Check it out and see for yourself!