The Stage 2 PMX Kit + Rear Speakers pumps up the volume with top quality sound, built specifically for your General. The kit features a 400-watt 4 channel amplifier and 2, 50W coaxial 6.5 in. speakers that provide top quality sound. The kit has an IP67 rating which delivers water resistance and dust protection. This kit is intended for use with General PMX. A roof is required for installation.