Navigation Function: Notes
The basic navigation system is composed of the audio-navigation unit, vehicle signal (vehicle speed pulse, reverse signal), and GPS antenna.
The audio-navigation unit calculates the vehicle position and guides you to the destination. The unit performs the map matching correction, GPS correction, and distance tuning. It also controls the menu functions and interprets the voice commands. With the controls of all these items, the audio-navigation unit produces the navigation picture signal and sends the signal to the display.