Connecting wires for trailer lights


#1

I know this is not car-related but I still need your help. I have a 4 x 8 mesh open trailer. My left light was smashed in and I replaced the light but not sure if the right way to connect the wires is to use wire nuts or just twist the wires together and use electrical tape? I am connecting the new trailer light to the wiring currently on the trailer. Can you suggest good and safe way to connect the lights? Thanks!


#2

I think the best way would to be solder and shrink tube. Wire nuts and/or electrical tape will eventually let moisture and road crap in.


#3

I agree with PvtPublic, solder and shrink tubing.


#4

Solder and shrink tube is the best but on the other hand I have connected my same trailer lights with wire nuts and have had no problems and its been 9 years! One of these days I’ll get around to doing it right…


#5

Now i am having grounding issues…the new light i installed is now causing the car’s lights to dim very low until i unplug the trailer wiring. I disconnected the new light’s wires and the other lights work great. I think its something related to the original mounting holes…Im thinking I may have to drill 2 new mounting holes and see if that will solve the grounding issue…unless someone else has better advice?


#6

Instead of relying on the mounting bolts for ground, install a real ground wire in addition to the mounts. Re-check all the trailer wiring for bad grounds and connections, there may be more and the extra from the new light may be just the last straw so to speak.


#7

Make sure you don’t have the stop and tail light wires crossed to the new light.