The lights don't come on with parking or headlights on, but brakes, emergency flashers and turn signals all work. They were "plug-n-play." Connections are all tight and dielectric grease put in every connection and no worky. Checked fuses on truck and they seem good. Can't verify relay.
I did notice one pinched wire in clip against the trailer, but I freed it and still not working.
Any suggestions? Thanks!