Came across this by sheer chance. If you're out of good panels American Flight Airways,
(one of many Virtual Airlines companies out there), has put together an excellent package which covers the whole Boeing and Airbus fleet plus more. Included is a very good moving-map display to be used in the cockpit. (The Garmin looks out-of-place in a 737 or 747). Information can be filtered within the cockpit from the AP-unit. (See them small knobs?).
The panels are kept in your main aircraft-folder. All you have to do is to link them to the models with the "alias" command. Happy good luck, folks.
Click here: www.flyafa.com
There's a link on the top of the page to the FSX-version. It's consumer-friendly and a dead fast site to download from. (Ten times faster than Flightsim.com). Try a couple of their aircraft too. You can download and install the whole thing in less than a minute. No kidding!