Navigation Function

The navigation system utilizes the GPS signals obtained by the GPS antenna, the vehicle speed signal from the ECM/PCM, and the yaw rate sensor contained in the audio-navigation unit to get a user from a starting position to a desired destination. The GPS signals, the vehicle speed signal and the yaw rate sensor (in the navigation control unit) determine the position of the vehicle icon on the map. The navigation system relies on the DVD ROM for maps and points of interest (POI) in order to provide the user with the optimum route between starting and destination positions.