New wiring harness on the old trailer, but, of course, it doesn't work (in spite of meticulous and methodical installation). It doesn't work because: 1) the LEDs are faulty, 2) there's a discontinuity in the new wires, 3) the plug at the front end of the harness is defective, 4) the plug at the back end of the truck has gone squirrely, 5) things never get properly grounded no mater how hard you try, or, 6) trailer wiring never works, no matter what, so why did you even waste a moment of your time trying to hook stuff up, you dodo?

Perfectly lovely (though on the warm side) summer day. (Climate change is really starting to freak me out.)