Apparatus and instruments for navigation, namely, navigation apparatus for vehicles in the nature of on-board computers; navigational apparatus and instruments for automobiles, namely, car navigation computers; electrical and electronic navigation apparatus, namely, GPS antennas, receivers, and sensors sold as unit; gyroscopes for use in stabilization and navigational systems; inertial navigation apparatus and instruments, namely, inertial navigation receivers; navigation compasses and sextants; data storage apparatus and instruments, namely, data storage computer hardware for use in vehicles for collection, storage, and tracking of vehicle activity; satellite navigational system, namely, a global positioning system; radar detectors for use on vehicles; radio transmitters for navigational use; road map display apparatus, namely, on-board computers for assisting in the navigation of a vehicle; mobile data receivers for tracking and locating vehicles; global positioning system (GPS) consisting of computers, computer software, transmitters, receivers, and network interface devices sold as a unit; all above excluding software for video and computer games, video game apparatus, computer games, computer game cartridges, computer game cassettes, computer game tapes, video game cartridges, and video game cassettes; replacement parts and fittings for all the aforesaid goods except the excluded goods