Can the GMA 350 Record Audio?

The GMA 350 contains a digital clearance recorder that records up to 2.5 minutes of the selected COM radio signal. Recorded COM audio is stored in separate memory blocks. Once 2.5 minutes of recording time have been reached, the recorder begins recording over the stored memory blocks, starting from the oldest block. To hear the latest recorded audio, press the PLAY button once.

Clearance Recorder and Player operations can be found in the below GMA 350 Pilot Guide starting on Page 28 Garmin GMA 350 Pilot's Guide.