Trimmed the canopy release tunnel to make room for the Avidyne navigator that extends past the subpanel. Removed the four rivets that support the rear of the nav tray to allow room for the control bracket and reriveted it to the subpanel. Realized later that there was no interference and the rework wasn't necessary. Oh well, at least no harm done. Trying to decide if I want a cable mechanism for the canopy release or forget it and just bolt the canopy hinge in place.