The Ranger Stage-4 is an aftermarket 1,500-watt M1 Color Optix™ front and rear audio system with subwoofer. This kit features the PMX-2 color screen multi-media source unit with Pandora® internet radio. Building on all the great features of Stage-3, this kit nearly doubles the amplifier power with the M5-1500X5. With 5 discrete channels, you’ll have full control of the 6.5” front speakers, 6.5” rear speakers, and 10” subwoofer, with future expansion of a secondary 10” subwoofer with rear-seats. A Polaris Ranger Poly Roof equipped with/without the Premium Roof Liner is required for installation of the rear speakers. The system is designed for select 2018 and newer XP 1000 FULL-SIZE (3-seat) and CREW (6-seat) models.