After a short road trip to the beach with 3 adults and 3 kids in the car, I realized that the trick of cooling the rear seats with just the AC in the car set to pull in fresh air was not enough. The kids were still sweating while everyone else was freezing. I've tried various fans and fan placement with varying success, but kept trying to find that elusive perfect way to cool the rear-facing seats and still be able to use the entire back seat as well. While this isn't for everyone, it might be what some are looking for. Still a work in progress and far from perfect, but better than anything I've set up so far... http://imgur.com/a/vKWry I'll add a video to hear the sound level later.