Extreme Car Audio is a Car Audio and Mobile Electronics retail store specializing in custom and competition systems for cars, trucks,boats,motorcycles, and powersports vehicles. We stock the largest selection of mobile electronics products in the area featuring quality,performance, as well as value driven products. We offer professional installation and design on all products sold and expert help with any purchase. Extreme Car Audio offers a large selection of car audio ,custom speaker boxes, mobile video, remote start and security systems, motorcycle audio, marine (boat) audio, L.E.D. lighting, custom wheels, and window tinting. Extreme Car Audio has two locations serving East Tennessee @ 1227 W.1st North St. in Morristown 423-289-5912 and 5005 Clinton Hwy. Knoxville 865-689-3400.