Join Date: Jan 2006
Location: Lawrence, KS - Rock Chalk
Car Year: 2010
Car Model: Legacy 3.6R Limited
I just close down the outbound vents to about half and point the center ones at the back to direct air there. for the center vents you can get to those by removing the top hatch. I'm not sure about how easy it would be to duct air around.
Our B9 7 seater had a separate fan and duct work for the rear, it's up in the headliner. The rear has it's own fan switch too.
2010 Leg 3.6 R, 2013 OB, 2001 OB, 2001 Forester S and 1999 Miata