Bolters, have a 59 Chevy 1/2 ton...when purchased had separate turn signals on a non original bed... Original owner had cobbled in trailer wiring harness as well.... So now. I'm wanting to convert to single tail light rear BUT....running lights workin fine, brake lights yes ... Now here's the But part, turn signals yes as long as there not joined to the brake wire for the single tail light, when they are joined no turn signal just brake, even the flasher stopsâ€¼ï¸ Could you gentlemen pls point me a direction for a wiring tip without going back to the dual light setup...there is not an add-on turn signal on the column to try the tech tip listed..txs