PMX-1 and Front Element Ready™ Speaker Kit for Select X3 ModelsPMX 1 and Front Element Ready Speaker Kit for Select X3 Models X317 STG1 Our Gen 3 Stage 1 kit allows you to quickly add audio on select Maverick X3 models. System equipped with a PMX 1 digital media receiver, upper dash kit, front speaker panels, and Element Ready M0 6. 5 speakers. Kit supplied with all necessary mounting and installation hardware requiring minimal time and tools. Refer to our COMPATIBILITY chart to verify fitment before purchasing.