The IFD540 — that's right, "540" is 10 more than 530, the number made famous by Garmin with its groundbreaking GNS530 — has been in development for a few years now. Avidyne says that it's approaching its final certification. Owners are already showing great interest. The IFD540 does everything the legacy Garmin product does, and then some. The big appeal, though, is the IFD540's plug-and-play design. To demonstrate this, Jake pulled out an allen wrench, pulled out the GNS530 in the panel of the 182 Experimental flight test platform, and installed the IFD540 in the panel. It took less than one minute. That's how long it will take the shop to do the install for customers making the change, assuming that the consumer doesn't need to go from straight GPS to a WAAS antenna. Otherwise, installation costs are impossibly low.