I agree it would be great to remove the KNS81... I get your point, but in reality no one I could think of would keep a KNS81 when fitting e.g. a GTN750. Also, you can easily check your navigation with your Navigation Software like Navigraph.
That all being said, could you maybe explain how to remove the KNS "with the gap"? I figured with my avionics layout it wouldn't hurt too much.
Also, is it possible to remove the MD41-328? Not that helpful with a GTN xD
Kind Regards,
Jannik S.