The dash on the -6 and -7 isn't anywhere near deep enough for it. The piece with the hud screen on it will barely fit between the glareshield and the front canopy. Which means everything else sticks out into midair in front of your face and in the way. Also a significant injury hazard in the event of an accident.
This would work a lot better on a Cessna 150/172 that has a deep shelf on top of the instruments in front of the pilot.