Because I think the filters in that pic only fit because the aux fan isn't there. I could be wrong, but that's the first thing I notice when I look at the pic (or think back to the space under the nose panel on my old Z).
"When you say this, will you be surprised if your arguments seem to move about instead of staying put? And will you accuse me of being Daedalus who makes them move, though you are yourself much more skillful than Daedalus and make them go around in a circle? Or do you not realize that our argument has moved around and come again to the same place? [...] Or do you not remember?" - Socrates
