I'm scratching my head a little now. I bought a new speedometer and gauges. I thought I would try to get a head start on some of the wiring behind the dash panel. I was trying to figure out where the lights in the back went so hooked up a battery and jumpers and tested some stuff out. I can't find any way to make the speedometer light up enough to be able to hardly see it in the dark. Some light does get to the gauges, but this has me puzzled. Maybe I just need to mount a light on the dash. I do have a manual oil gauge with no light that I have to light up anyway.