yeah vent from the bottom, which is fine for me.. and i think cabin cool down pretty fast in my case.?I’ve got no one that sits back there, but easy enough to run a 10ft cable off the second USB A in the second row if someone is back there and needs it.
Random find though. I’ve seen MDX reviews claim that the 3rd row passengers get no vents in the 3rd row and therefore might be hot/cold. I did find a vent that runs under both 2nd row seats, so the 3rd row does get air flow back there lol.