Install nut plates in sub panel brace for radio rack support.
Determine final mounting of the GTX45R transponder. I am trying to mount it per Garmins recommendations such that the Bluetooth antenna is oriented towards the cabin, while having sufficient cable length to connect it. I finalized a position that will work and began fabricating tray mounts from 2024 angle.
Holes for the tray mounting screws were located and drilled with a #30 drill.
The side vent of the transponder was located and marked for removal.