Troubleshooting Trailer Running Lights Not Functioning on Trailer  

I hope you can help, When I bought my boat the trailer had a 5 wire blue wire included flat tail. Not sure why it simply did not come with a 4 wire set up. The trailer doesnt have breaks or auxiliary lights. I change the wire set up on the trailer to a 4 flat because I had an incident where the wires were pulled out on one side. since I changed to the four flat set up I added the C E Smith lights that go on pvc.pipes. As directed hook each side to the brown wire and I took the ground and grounded it to the screw that holds the tail lights to the trailer. For some reason i cant get them to come on. my blinkers will work but nothing happens with running lights. brake lights work blinkers work but nothing else what am I missing?? Should i try and ground direct to the trailer or go back to the 5 wire set up. If so why?? Thank you

asked by: Jay