Mine was not wired. I ran wires through the roof to my electric switches by the door and tapped in there. It was a pain, but after 30 minutes of trying to fish the wires through, I did it. You could tap into a nearby light, but if like mine they are on a switch by the door, the light switch will need to be turned on in order to operate the fan. I wanted the fan to always be hot, not needing the light switch to be on. That is why I ran the wires to the box.
2015 Jay Flight 26 BHS Elite with 320 watts of Solar from AM Solar
2016 Chevy Silverado 2500 Duramax