When we added the third AC to our rig the thermostat cable and the electrical connections were already in the ceiling and the other end of the thermostat cable was behind the fan control when I took it off. I used a low profile Dometic just to make sure the cable etc was compatible, but it should work with any unit.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.