Honestly guys, after reviewing all the options. I really think you can spend $50 - $150 and get a very good Bluetooth speaker. They make them waterproof, shock resistant, loud and run for 12 to 15 hours on one charge. Plus you don't have the hassle of wiring or messing something up. You can also take the speaker off and use it elsewhere when your not using the utv. That's the way I'm going.