Abtec NZ Online Superstore - Car Audio and stereo installation Auckland, Wellington, Christchurch. Supply and install car alarms, speakers, stereos, window tint, subwoofers, car amplifiers. Online Car Audio is New Zealand's premier car audio and security specialist. Over 30 years in the business of installing the latest in sound and security equipment. Online Car Audio offers state-of-the art equipment and custom design and installation services specialising in customised, state-of-the-art Audio Systems, In-Car Entertainment Options, Security (Car Alarms), Navigation Systems (GPS), Parking Sensors/Backing Camera and Monitor, Bluetooth Cellular Car Kits, iPod / MP3 Player Integration, Radar Detectors.