My 33.3, which has a queen 'island' bed at the rear of the coach(the headboard on at the rear of the coach), has the ATS at the foot of the bed, within a false wall, removed with 4 screws. The foot of the bed is also where the electrical Main Panel and Fuse Panel are located. The ATS is next to the main panel, where the main Shore Cord and Generator wires come into the ATS, and the ATS 'out' wires exit to the Main Panel next to it.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Hiawassee, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )