i see. for some reason i thought garmin is making it available on website for download, that means it must be unlocked. is there a separate mapID for the 3d file to unlock? i am just curious. also can someone check if they see a separate 3d map file in the list of maps installed on the nuvi? i dont see on mine even with the 3d file from OP installed. i wont be going to a 3d area anytime soon so cant verify its working.