Dredging up an old thread but I've been thinking about something that this crowd might have some ideas on. Reading reviews on the aftermarket cooled seat covers, it seems like the back (most critical for me) doesn't get much cooling.
On the existing seats, there's a gap between the seat and seat back (of course) and, behind the seat, it's sort of covered by the upholstery except for openings on either side. Was thinking it might be possible to inject some cool air by running a tube in there tapped off of the rear vent air source. That way, it could be turned on by enabling rear vents. Obviously, it would use more energy than a dedicated cooled seat but no more than the already running AC.
Originally, I was thinking of covering the rear vents with the intake of that tube but I'm trying to figure out if there might be a more elegant (hidden/permanent) solution that could tap the source inside the center console; maybe with a manual mixing valve so allow rear vent priority as necessary. I've been looking for schematics but not having much luck even with the maintenance manual. Any ideas?
Will probably try a proof of concept using the original cover idea and post the results.