The “brains” of car navigation on SD card.
Just insert the SD603AU into the SD card slot of the VX603AU and you have a highperformance car navigation system providing turn-by-turn guidance, text-to-speech voice instructions and much more!
NAVTEQ maps for precision and reliability.
SD603AU uses the latest NAVTEQ map information, the most widely used map for navigation, renowned for its accuracy and precision.
SUNA® Predictive Traffic
Smart Traffic Included. The SD603AU calculates the best possible route for the time of day and day of the week.