Where is the navi serial number on a 2008 MDX?

In a 2008 Acura MDX, the navigation (navi) serial number can typically be found on the navigation DVD case or on the navigation system's screen itself. To access it via the screen, turn on the navigation system, go to the "Settings" menu, and select "About." The serial number should be displayed there. If you have the original navigation DVD, the serial number is printed on the back of the disc as well.