Gauge wiring
As far as the lights, the black went to a ground I'm assuming and the white goes where? I would think you could tap it to the light switch, but which one, there's like 20 wires back there.
And the gauge there is a red and a black wire. I'm assuming the black is ground and the red is accessory power. Where did you tap the accessory at? I know there is one on the fuse panel, did you splice it on the back of the panel or what?

