Vehicle radios; Navigation apparatus for vehicles in the nature of on-board computers; Satellite navigational apparatus, namely, satellite-aided navigation systems; Global Positioning System (GPS) apparatus, namely, global positioning system; Horns for loudspeakers; DVD players; Portable media players; Automatic indicators of low pressure in vehicle tires; Speed checking apparatus for vehicles, namely, speed indicators; Monitoring apparatus, electric, namely, electronic monitors for monitorin...