MTX Audio MUDSYS31 Bluetooth Overhead Utv Audio System Bluetooth enabled Universal mounting Integrated amplifier MUDSYS31 Bluetooth Sound Bar fits Cages with Inside Measurement 32.25" to 38.75" Including Polaris RZR 900, 900S, 1000, XP1000, XP Turbo, XP4 1000, & XP4 Turbo.