I am a new F500 owner, tried a few code changing mods yesterday and the system would not start up, on the bottom the "staring device, please wait" or similar message did not go away after 10 min so I had to put back the correct backup file and it's back to normal. I am wondering if most of the mods stated in this forum only work on the in-dash 700s and 900s and not on the 500s. Can anyone confirm that, and if it's true, maybe link a thread that talks about which mods actually work on the 500, that would be SWEET!