Garmin's G500 TXi and G600 TXi systems are compatible with the Avidyne DFC90 autopilot in Cirrus SR22 aircraft models. When interfaced to an existing DFC90, TXi supports mode annunciation and full bug synchronization on the PFD. For added redundancy in aircraft equipped with dual AHRS, the DFC90 can utilize both sources of AHRS data. In the unlikely event of an AHRS failure, pilots have the option of selecting which AHRS source to use, allowing the autopilot to remain fully functional.