While a lot of RV's are wired for powered vents, the only way to be sure is to pull the vent trim off and see if there are wires in there.
It might also help if you post the model of your unit. Then someone with the same unit could tell you if theirs was prewired.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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