Used pro crimp tool; just did all the running lights
. Added eyes to wire ends put stainless steel bolt through eyes then stainless washer with bonded neoprene washer to wall side for water tight seal, then put through hole in fiberglass out through light
with a stainless washer and nut on inside of light, added eye to wire on other side put it on bolt with washers and nut. Water proof and stainless so all is good did not solder any joints. lights
work great. Used lights
the same size and look as old light to make the job easyer and look a lot like original.
p.s. Also like heat shrink tubing. Always important to remember trailers flex