Hi, my name is Henry
Retired Air Force Pilot and Head of SAF OT&E (Operational Test & Evaluation)
I am now instructor pilot at Ecuvillens (LSGE)
Our fleet of Cessnas 172 has been upgraded with Aspen Avionics, Garmin GTN 650 and Power Flarm.
Not too expensive, one week of work and everybody is happy with.
Happy Landings
Henry