Garmin GNC215 VHF Nav/Comm w/GS 3 will unlock a Garmin STC

will unlock a Garmin STC Permission Letter

approved for IFR and VFR flight

which also includes the IFD540 and IFD440 FMS/GPS/NAV/COMs and AXP340 ADS-B Extended Squitter ModeS Transponder

And if you prefer traditional controls

Garmin GNC215 VHF Nav/Comm w/GS 3 will unlock a Garmin STCMEET YOUR NAV COMM NEEDS AND MORE Upgrade your NAV COMM radio with the modern, cost effective slimline GNC 215 radio, and add advanced navigation and communication capabilities to your panel. Small panel? The slim 1. 35 height fits your aircraft with ease. See your frequencies clearly on a large, bright, full color LCD display. Its easy to use, with a familiar, intuitive interface. Find your navaid or facility frequency with the worldwide database.