Audio tape players and recorders; digital audio tape players; video cassette players and recorders; compact disc players and recorders; video disc players and recorders; mini disc players and recorders; compact disc changers; mini disc changers; television monitors, video monitors for automobile navigation systems; radio receivers; amplifiers; graphic equalizers; electronic signal processors, namely, sound processors, surround-sound processors, channel dividers, digital/analog converters, and frequency processors for audio and visual apparatus; audio speakers; television receivers; telephone antennas; CD-Rom disc containing map information for vehicle navigation systems; DVD-Rom disc containing map information for vehicle navigation systems; memory cards containing computer programs for map data; blank memory cards; hardware for mounting audio and video equipment in vehicles sold as a unit with the aforementioned audio and video equipment for vehicles; remote controls for car audio apparatus or navigation apparatus or television apparatus; electrical extension cables; electrical communication cables; navigation apparatus for determining or signaling the audio location, the locations of sites, and travel routes, time, traffic conditions; magazines for holding multiple discs for use with compact disc changers or mini disc changers; electrical interconnectors; batteries and battery chargers