Could someone who knows refresh my memory. The vents above the sliding side door on a pop top do not seem to function. I seem to recall that this is so because when the pop top was put in the camper version these air ducts became disabled.

Am I correct? I'm considering putting a third Thin-Lite interior light fixture above the door and do not want to interfere with the air duct if it is still functional.

Wiliam P.