I completely goofed that question.
In my head I was thinking about the wiring, not the location. Might help if I actually mentioned that in my question I suppose....
I'll try again.
What's the best way to run the wiring into the cab so I can mount it below the air vent, by the driver's side door? I have a dimmer switch for the dash lights adjacent to this spot so there's room to install, just not a designated tab to pop out.