Drilled holes for ADS-B antenna and tranponder antenna. Installed ADS-B anttenna under opening in right side seat. Waiting on delivery of transponder antenna from Zenith. Also took some time to look at layout of boxes on shelf. Decided to rearrange some of thiem once I connected all the fast stack cables. New layout will work better for the 3 coax cables that need to be connected to their respective remote box. Next will be to remove shelf and install nutplates to mount the remote boxes. Then the fun will begin trying to find the best way to get all the wiring to be neat.