Might not be really helpful but I was able to install a hard wired unit in my 07. It's between incoming power and circuit breaker box. All incoming power goes thru it. My AS might have more space, no clue with yours. I do like the hard wired version. Not exposed, not an extra plug contact to deal with.
As they say YMMV. your mileage may vary.
Welcome to Airforums by the way.
2005 Dodge Ram 2500 5.9L 6 Speed
16" Michelins, Hi Spec Wheels, Max Brake, Carslile Actuator, Equal-i-zer, Dill TPMS. Campfire cook.