Yes, for the most part the Garmin GMX200 Multifunction Display will directly replace the original UPS Aviation / Garmin AT MX20 MFD with minimal installation changes. Both MFDs utilize the same dimension mounting tubes and connector styles; however the mounting tube part numbers are different. The mounting tray would need to be replaced. The GMX200 utilizes a configuration module that is located in the backshell of the main connector. Therefore, certain provisions would need to be made to include this config module in the connectors and programming of the configuration module. There are also some minor details relating to the MFD interfacing to a CNX80 or GNS480 if applicable.