Transform your RZR Pro XP 4-seater to a bass behemoth by adding a secondary 10 subwoofer with the Rockford Fosgate RZR19PXP-RSS rear subwoofer add-on kit, purpose built exclusively as an upgrade to existing aftermarket RZR19RCPXP-STG 4, 5, or 6 audio systems OR RZR19PXP-STG 4, 5, or 6 audio systems for Ride Command ^^ The integral harness allows for a plug-and-play design and requires no cutting or drilling by using OEM mounting points ^^ Includes our M2 Series 10" Element Ready loaded subwoofer in a vented enclosure (Port cap included to create a sealed enclosure for tighter response or when submerging UTV), and built to custom fit under the rear seat with no loss of passenger space ^^ Purpose built for the off-road environment, Rockfords Element Ready products are built to stand up to water, dirt, mud and UV rays, making sure all your audio components perform regardless of the conditions ^^ Designed and built by Rockford Fosgate, this rear subwoofer add-on kit is only compatible with select 2019 and newer Pro XP 4-Seat Models - Check out the Required Rockford Fosgate Audio System and Compatible Model Charts Below to Match Your System, Model & Year