http://grtavionics.com/home/efis-systems/heads-up-display/
Chris, I am sorry, read this link at the very bottom it says you need a GRT Mini at least. It is obvious as without a GRT Efis where do you get the attitude and air data from.
Does the curvature of many piston GA windscreens make projection more difficult than on car windscreens?
Chris,
have you ever received the HUD and does it work without a GRT EFIS?
