Continuing the antenna and radio install entry. I mounted the Trig TY91 com radio under the passenger seat. From this location it can be easily removed from the mounting tray from either the front seat lightening hole or the top lightening hole. The unit is small enough to fit through either one. Finally, I connected the antenna cable.
In a similar manner, I mounted the TN22 transponder under the pilot seat. I don't have the transponder antenna cable yet, but went ahead and mounted the shark-fin antenna on the belly behind the gear. There shouldn't be much drag on such a small antenna so I didn't make a doubler for this antenna.