Fuck this thing! Ran all new wires back to the tail. Found a bare spot on the former taillight wire and thought for sure shorting was causing my problem. Put a new 13.5v bulb in and it blew instantly!
Voltage meter tells me nothing. Just random bounces A/C D/C settings, doesn't matter. At the light or the terminal.
What the hell is going on and how do I measure, let alone fix this?