Okay, so I took out the headlight on the weekend and checked it out. The wiring was not very well done, as whomever did the installation just stripped some insulation off the existing wiring inside, wrapped the angeleyes' wiring around it, and taped it. It would have been fine if it had been soldered. Anyways, it seems that the wires heated up near this tap quite a bit since the outer insulation blackened a bit. I tested just the angeleyes to 12V, but they didn't light up.
There's this board, of which I cut off the heat shrink that was wrapped around it, where power and ground connect to, and from where 4 wires feed the angels. What the heck is it and what does it do? Where can I get a new one?
Some have said that LEDs don't have 'ballasts/inverters/etc", but these have something!