I have the MFSW and I have the voice commands working with the bluetooth system only. I'm following a second forum that are hacking the NAV system to see if they can make the voice commands work with everything (Go to Navigation) type commands I assume. the volume and radio search options work of course. I have the "mode" button that I still haven't figured out what to do with it. I'm hopeing I can use my VAG cable to make it switch from radio to navigation to CD etc. but I just haven't had time to look in to it yet. I was actually on the site this morning to to see if anyone has done this yet.