Oh, ****. Here we go again. Remind me to kill you later, David.
The big red one is for the front and rear radar detectors.
The black one near my seat ENABLES the W/A injection. The black one next to Lilpooky'* (and Will'* Ride'*) seat turns W/A injection ON if it'* enabled, and I'm not in park or neutral. The green LED is for W/A ON, the yellow is on if the W/A system is pressurizing (off my utility air in the trunk.....automatically by means of a pressure switch) and the red LED is on if the W/A injection is delivering juice to the intake.
In the near future:
Big red one will be for the Gtech Comp meter. The two black ones will be for the radar, one each.