In order to get back into the fuselage to install the antenna and antenna cables I make a bed for myself from seat cushions and pillows. The inside is full of sharp edged that would make working there near impossible. I also spent some time to locate the center of the 0.5" hole on the fuselage used to install the antenna. I used a long straight edge to extend both side of the canopy rails and drawn a line past the planned location about a foot forward of the vertical stabilizer. Marked the center of the two lines over the desired location. This gave me an exact center on the fuselage.
