I looked for a vehicle specific forum and couldn't find one, so if there is one mods please move as appropriate. I have a Toyota, which is a 5 light system, where the turn signals are separate form the brake lights. My trailers are all 4 light systems where the brake lights are also the turn signals. I have been using a Hoppy 5 to 4 light converter to make the light work. My third one just quit working. I have searched and all I can find is the Hoppy unit that keeps failing. I am at the point where I am about to add lights and convert the trailers over to somewhat of a 5 light system, where on my 4 light trucks both the yellow and red will flash as turn signals and light as brake lights. Is there a better way? I use these trailers with both 4 and 5 light trucks. I don't really want to have to have 2 sets of plugs on the trailers, but I would if I had to. Any suggestions, recommendations, or tips are appreciated.