Car stereo installation kits comprising a stereo, speakers, amplifier, equalizer, crossovers, speaker housings, stereo cables, radio signal tuners, antennas, steering wheel radio control interface, dash kits, faceplates and wire harnesses sold as a unit; electrical and musical signal transmitting cables and connectors; home audio interconnect accessories and distribution devices, namely, digital audio interconnects, multi-channel analog audio interconnects, audio cable adapters, termination adapters, audio cable couplers, audio cable ends, audio switch boxes and audio splitters; home video interconnect accessories and distribution devices, namely, digital video interconnects, analog video interconnects, video cable adapters, termination adapters, video cable couplers, video cable ends, video switch boxes and video splitters; home multimedia interconnect accessories and distribution devices, namely, digital gaming interconnects, analog gaming interconnects, gaming cable adapters, gaming cable couplers, gaming cable ends, gaming switch boxes and gaming signal splitters; home security interconnect accessories and distribution devices, namely, closed circuit, data cable adapters, data cable couplers, data cable ends, data switch boxes and data signal splitters; home power conditioning and surge protection, namely, surge-protecting cables, surge-protecting boxes, power cables, power connectors, power-line conditioners; home audio-video security and data installation tools, namely, in-wall cable routers and acoustic couplers; automotive batteries; automotive batteries designed exclusively for car audio power applications; radio signal detector and signal emitter; radar detectors; computer and video monitor accessories, namely, hardware adapted for mounting computer and video monitors in vehicles, hardware adapted for mounting computer and video monitors to walls, cabinets and desktops, and hardware adapted for mounting computer and video monitors in airplanes; audio devices, namely, amplifier integration interfaces, audio cables, audio equalizers, audio interfaces, audio signal amplifiers, audio signal switchers, auxiliary input devices for automotive radios, radio interfaces, band-pass filters for use with audio circuits and speaker enclosures, bass blockers in the nature of a high pass filter that attenuates lower frequencies; auxiliary input devices for automotive radios, namely, hardware and cables for inputting electronics into car radio systems; CD changer interfaces, floating ground adapters, FM modulated audio receivers, FM modulated audio transmitters, high-pass filters; line output converters, lowpass filters, power resistors, radio frequency audio receivers, radio frequency audio transmitters, radio installation interfaces, RCA level attenuators, RCA level controller, RCA switcher satellite, radio interfaces, volume controls for use with audio equipment; noise control, namely, antenna ground loop isolators, choke filters, filtering capacitors, power lead filters; door lock interfaces; DVD changer interfaces, DVD interfaces, in-car entertainment system interfaces, navigation audio and radio interfaces, navigation system interfaces, radio frequency audio-video receivers, radio frequency audio-video transmitters, radio frequency video receivers, radio frequency transmitters, video cables, receive amplifiers, video signal switchers; timers; audio timers; telecommunication transmitters; RCA level input attenuators used for attenuating input signal to improve the signal quality; volume controls used to control the volume and fine tuning of RCA level signal; battery; electric switches, electric switches, namely, video signal switches; digital audio converter used to convert between analog and digital audio signal; electric theft prevention installations, namely, security alarms; remote control apparatus for vehicle use, specifically for controlling audio, video and security interfaces; electric locks; hands free kits for phones; devices for hands-free use of mobile phones; electronic display interfaces, namely, USB audio and media interfaces for automotive radios, digital media interfaces for automotive radios; wireless audio and digital media for automotive radios, namely, downloadable audio and video files and pre-recorded digital media featuring music; audio equipment for home use and audio equipment for mobile use, namely, speakers, cables, receivers, tuners, amplifiers, audio controls; audio and video equipment, their parts and accessories, namely, transmitters, wire and cables, electric, power distribution or control machines and apparatus; amplifiers, speakers, audio and audio controller, line drivers, electronic crossover, stereo equalizer, plugs, connectors, pickup, terminal; radio operator receivers, stereophony; audio signal distribution products namely, signal processors, cables for audio signal transmission; digital signal processors, audio devices, namely, line drivers in the nature of amplifiers for audio signals; cable door lock interfaces, keyless entry systems, namely, electronic programmable keyless activation unlocking system comprised of a microprocessor, signal detector and signal emitter; short range radio interfaces for mobile devices; MP3 player accessories and MP3 player interface kits comprising player electrical power cord and player transmitters; loudspeaker systems; loudspeakers; electronic display interfaces for industrial automation and process control signal transmission cables; pulse generators for testing electric current; devices for hands-free use of mobile phones; mobile audio interfacing equipment, namely, wiring harnesses, switches, audio-video cables, connectors, crossovers, batteries, MP3 integration, line output converters, diodes and antenna adapters, noise filters, electronic testing equipment for testing the mobile audio interfacing equipment, trigger modules, and navigation equipment, namely, car navigation computers, sensors, cameras and display screens; portable-digital electronic device accessories, namely, MP3 player accessories, namely, player cords, player transmitters, MP3 player transmitters; MP3 player accessories, namely, cables, speakers, earpieces, and harness to facilitate mobile and automotive use of MP3 players, and MP3 player interface kits comprising player electrical power cord; cables, electric; electricity connectors; electricity wire connectors; automatic regulator for vehicle sound; vehicle radios; sound transmitting apparatus; Sound transmitting apparatus for vehicles; connections, electric; couplings, electric; plugs, sockets and other contacts, namely, electric connections; switchboards; coaxial cables; audio, video, audio-video, and automotive audio cables and connectors therefor, switches, stabilizers, and wired transmitters; system control interfaces for automobiles, namely, all-in-one triggers, databus interfaces, IR repeaters, IR transmitters, low voltage triggers, pulse generators, steering wheel interfaces, timers; audio/visual tools for automobiles, namely, data analyzers; radio removal tools for automobiles, namely, frequency splitters, electric line filters, signal analyzers; sound amplifiers; reverse sensing system, namely, alarm attached to motorized vehicles to alert drivers of objects behind the vehicle; reverse sensing system, namely, a detector and alarm for detecting, determining the distance and warning of objects from a vehicle; sensors, monitor, alarms, mirrors, connectors, wiring and accessories in the field of driver assistance; sensors, monitors, alarms, mirrors, connectors, wiring; automotive and transportation sensors for vehicles, namely, parking and locational sensors for automobiles; full line of security devices for automobiles, namely, databus door lock interfaces, keyless entry systems comprised of remote controls to open and close doors, electronic timers; vehicle accessories, namely, global positioning satellite navigation systems, in dash navigation, GPS rearview mirror, backup monitor mirror, automotive audio interface, controller area network bus audio interface, global positioning satellite navigation computers; vehicle accessories, namely, head rests, DVD players, wired remote controls, wireless remote controls, wired headphones and wireless headphones; vehicle accessories, namely, parking assist sensors and audio interfaces; vehicle accessories, namely, vehicle tracking devices and digital audio recording devices, namely, vehicle global positioning satellite tracker, trailer global positioning satellite tracker, personal global positioning satellite tracker, spy tracker, global positioning satellite receiver and integrated software, batteries for system components, digital audio recorders, multi-channel automotive DVR system, wireless remote controls, component hard drive storage, component SD storage and component SIM card port