Hi All, I'm trying to fit heated seats to my 2006 A3 Sportback and as part of that have installed a 2010 climate panel. All works fine apart from the AC. When I turn it on the fans stop blowing but when I turn it off again I get a brief shot of very cold air so obviously it's not the HVAC unit. I've read somewhere that that the HVAC unit is different post 2007 but also seen wisperings of a way around this problem. Any Ideas?