Designs don't just change from year to year, but even from individual coach to individual coach. So I don't expect a huge similarity between your '11 Holiday and our '06 Dynasty. But I will share the list of things that are "always hot" on our coach.
They include the AquaHot, the refrigerator, the CO detector, the LP gas detector, the CB radio, the security system and the electric door and bay door locking system.
We have a couple more, but they are systems that have likely been replaced by newer technology or are no longer used. They include our GPS CD unit, our air leveling system (not sure what part is kept live), and our Aladdin (coach monitoring unit).
This may not be very valuable information, but it might give you some ideas of what to check out.
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Jim & Angie, Boise, ID
2021 Entegra Esteem 27U
2017 GMC Acadia Denali
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