9 automotive on board computer and network control units, with multimedia functions for on board vehicle diagnostics and on-line traffic and navigation information, rear vision display, audio and video entertainment and wireless communication, featuring voice and audio, video and data messaging displays, and connectivity to electronic mail and global computer networks, and accessory products for use therewith, namely, compact disc changers, VGA displays, television turners, video cameras, audio amplifiers, antennas, loudspeakers, microphones, and plug-in modules for voice communications, data communications, vehicle navigation, audio and video entertainment and global computer network and electronic mail connectivity; and parts for all the foregoing