How do you install navigation DVD on 2007 Lexus gs?

To install the navigation DVD in a 2007 Lexus GS, first, turn on the vehicle and ensure the navigation system is powered up. Open the navigation system's disc slot, typically located in the center console or dashboard. Gently insert the new navigation DVD with the label facing up, ensuring it is seated properly. Close the disc slot, and the system should recognize the DVD and update the navigation data accordingly.