SSV Bluetooth Overhead Sound System. Upgrade your ride with a SSV Bluetooth Overhead Sound System. https://zzdiesel.com/search?q=SSV These weatherproof, over-head audio systems are the perfect solution for either 2 or 4-seater vehicles with a stock cage. This unit easily clamps above your head to your stock cage, leaving you with a 15-minute installation time. Did we mention this system is fully weatherproof? Polaris. Yamaha, Kawasaki, Honda and more.