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This paper describes an Automobile Navigation System with Multi-Source Guide Information. One of the features of this system is accurate location detection, which uses refined map-matching method incorporating a high accuracy rotation sensor, Fiber Optic Gyroscope (FOG). The system shows the position of the vehicle on a CRT map display and can also provide useful information, such as the locations of hotels, golf courses, etc., by using a CD-ROM disc. In addition to this information, this system can play CD-ROM discs based on the CDCRAFT standard. By means of this standard, software vendors can produce multimedia entertainment, such as a sightseeing guide with voice. Also, this system can display road and traffic information from the roadside radio beacons of the Vehicle Information & Communication System (VICS). This navigation system has been installed in Nissan's 1991 model Cedric, Gloria and CIMA.