PMX-3, Front Color Optix™ Speaker, Dual Subwoofer and Rear Horn Speaker Kit for Select X3 ModelsPMX 3, 1500 Watt, Front Color Optix Speaker, Dual Subwoofer and Rear Horn Speaker Kit for Select X3 Models X317 STG6 The 1st Stage 6 kit to be released from Rockford Fosgate takes UTV audio to the next level by making it even LOUDER! System allows you to add front and rear Color Optix speakers and a subwoofer on select Maverick X3 models. Kit is equipped with a PMX 3 digital media receiver with camera video input and SiriusXM Ready satellite radio,