Wiring light bar

You feed the wires in at the A pillar where the roll cage bolts to the frame. Then up on the roll cage (about the middle of the door) you will see a hole. They come out there then you can take them wherever you want. Guess you will be drilling a hole in the roof to wire the light bar
Nothing. Just shove the wire up from the bottom. Or try from the top and come down.
I did take my die grinder and notched it slightly at the bottom for easier access