Review on Hifonics TPS-BT1 Marine & Powersports Bluetooth Source Unit (Black) – Dash Mounted, Backlit, RCA Output, Fingertip Joystick (Power/Volume/Tracks/Play Controls) by Joshua Ngo

This seems to work fine in my RZR. I installed a Rockville amp with Kicker 6x9 speakers in Rockville cassettes. Sounds good. I just don't like the lag between the controller and my phone. It's not bad, but a bit annoying. I'll update when I get a chance to use it on the trails. I recommend building your own system rather than using kits if you have the skills. BT $60, 4 channel amp $100, 6x9 kickers $60, Rockville modules $100 = $320 + taxes and plumbing supplies.