Congrats and welcome.
On my unit, the main AC system has a large vent / intake on the ceiling. Also on that unit are vents, that when closed, force the air back through the duct work in the 5er.
Just thinking out loud
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Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
Click on my profile for Mods and notes
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