Since the release a few years ago, Avidyne has earned considerable industry respect for its IFD-series retrofit navigators simply by doing what buyers expect. It has incrementally advanced the interface by adding clever features and utility, while being mindful of third-party compatibility. It also curtails the installation effort with a plug-and-play interface with Garmin’s legacy GNS-series WAAS navigators.
While the flagship IFD550 navigator can easily drop into an existing GNS530W installation (or be wired from scratch), that’s about the only thing it has in common with Garmin’s old interface.