Informational: I can confirm that FSUIPC 4.853 works with an Aera 500. (Et Sylvain, je te remercie encore pour le cable!) The setup is quite simple. If your computer doesn't have a serial COM port, get a USB-to-serial cable. (Cheapest is not best: expect to spend about $30.) (Make sure your port is configured to operate at 9600.) In FSUIPC on the GPS Tab, select "Check to enable the GPSOut", select the COM port across which the communication will occur. For port speed and interval, I am using 9600 and 100 (one hundred). The only box that should be checked in the message types is AV400. Then the interesting part the Garmin cable to serial port. On this, the solution I have is an official Garmin "Bare Wire" cable which plugs into the back of the Aera and has cables dangling off the other end, as described in appendix D of the user manual. Yellow wire pin 3 data transmit, black wire pin 5 ground. Final part is the configuration on the Aera. On the tools/setup/interface,, change the interface setup to "Aviation In". It will say "Aviation Input Status: Disconnected" - just ignore. On Tools/GPS Status/Menu, select Start Simulator. Then go back to the map page... and enjoy! Hope this is helpful for someone :-)