I have help coming tomorrow to install the panel so today I wanted to prep for it. I installed the glare screen fans, guards and doublers. Actually each fan surround is made in a I-beam design and doublers are not needed, but I installed them anyway. I also installed the AOA controller and then installed a BNC (AMP #225395-6) connector on the RG400 NAV antenna wire that will be connected to the Garmin 650 NAV terminal. This NAV wire is connected to a Comant CI 157P VOR dipole antenna located on the fuselage under the rudder.