Call Thor Customer Service and ask for the construction drawings for particular model, specifically ask for all the electrical drawings. On my Axis, and orange and white #10 ran from the roof aft of the bedroom vent fan to behind the power distribution panel (breakers and fuses) under the bed. It's a rat's nest of jumbled wires there. In our 25.4 this is a tight space at the foot of the bed, shared with water pump. But your mileage will vary.
I'm wearing trifocals now but my hindsight is 20/20.
Bilsteins and Sumos front and rear...HUGE! FatMat and Hoodliner...HUGE!
Hellwig sway bars F&R, 235/85 Hankook ATM, alignment...HUGE!!!
Battery watering, 260watts Solar and BigFeets to make life easier.