Hey Patrick...

Just another option for future projects! I had this same issue with my Hobie trailer and my utility trailer. I resolved it by buying a pair of amber running lamps for each trailer. After installion, I replaced the dim bulbs with brighter ones, and ran separate wiring to the front of the trailer. I used a two wire plug from Radio Shack (that can only be plugged together one way) to connect the trailer wires to the wires spliced from the car's turn signals. The trailer wires share the ground wire.

This has worked well for over 7 years.

Mark Owens
1976 H16 Sail # 19857