Trailer lights: what kind of connector?

[KarenH]

I was amazed to see this thread, because just last night,* I was telling my son about all the connections that a camping trailer needs. This is stuff I learned about in the 1970s, and I haven't thought about for years!

Anyway, I don't know about electrical specifics, but if I were in your situation, I would not go to a car dealer; I would go to an RV specialist for any work related to the towing apparatus, whether for the tow vehicle or for the trailer. I believe that any decent RV specialist will have tons more experience with this than a regular car dealer. It would probably be worth the drive, even if you don't have an RV shop near you.

*In case you were wondering, we were discussing a show Eric had seen in which some crazy people did an experiment to see if they could stop a runaway trailer using rockets. They nearly got themselves killed, of course. As I explained to Eric, a good trailer towing package already has multiple safety mechanisms which would make it virtually impossible for a runaway trailer situation to occur.

[MrForbes]

I seem to spend more time getting horse trailer wiring working

[Branden Ghena]

My dad and I re-wired my grandpa's trailer because its lights didn't work. When we were finished the lights still didn't work. We realized we had blown a fuse in the car, although the wiring was probably bad to begin with.