Make all the parts of a performance audio system work just right by using JL Audio installation accessories. They make a variety of products for DIY stereo installs, including subwoofer input plugs and load sensor adapters. You can get a stacking hardware kit for dual amplifier setups or buy speaker adapters to mount them on your motorcycle handlebars. OnlineCarStereo.com is an authorized dealer with lifetime tech support and free shipping on all our JL Audio car stereo equipment.