I just purchased a 900bt off ebay. What is the latest and EASIEST software upgrades? Are any all inclusive? Can I download a all in one that will update winCE, maps etc? Thanks

Anyone?

If you want to follow the offical update, you can go to Pioneer site and find the downloads. However, if you want to update files out of the Pioneer support, you need a bit of "hacking". I'm using F500 and the process is very similar.

If order to update program files (such as maps, custom skin and navigation program) outside the offical support, you need to boot the unit into WinCE mode. This can be done through "Test Mode". Search this site for "Test Mode" and you can find the instructions and files. Once in WinCE mode, you can then update map files individually by copy/replace through the Windows UI.

In order to update WinCE out of the offical support, you need to boot into "Service Mode" and load the custom ROM files from there. Search this site for "Service Mode" and you can find the instructions and files.

This site has tons of info and you just need some patient to find them, it took me a couple of weeks to get all the info and files organized.