With JL Audio battery accessories, you can link stereo system wires directly to the battery for the most power possible. We carry multiple universal car battery connector terminals for different situations. Use the JL Audio marine-grade battery terminal for compact single-connection setups or the three-point power wire terminal for massive stereo systems. There are also terminal adapters if your current battery doesn’t allow for a connector. OnlineCarStereo.com has free shipping anywhere in the lower 48 states for DIY audio installers.