I made a final decision on the location of the GPS mount on the turtledeck. I made up a doubler plate for the mount base and drilled, dimpled and primed it.
My wife assisted me in removing the canopy so I could work on the GPS mount.
Next I mounted the base to the fuse with some double sided tape and set it in position. I matchdrilled and deburred all the holes. I also drilled a small 1/16 hole in the top corner of the GPS antenna mounting plate in order to safety wire the hinge pin in place.