Forgive me. Have not been able to exactly nail down the answer to this question through search. I recently purchased a new 2012 SR5 Runner with the nva/entune system. I am trying to determine if it has the latest nav software update. Can anyone explain how I can find this? Also on this system is it a dvd or does it have a disk? Where is the disk? I checked under the seats and way back to no avail. Thanks for the help all.