Fusion MS-CD600G, CD/AM/FM/AUX/ Sirrus and iPod Ready Marine Stereo AM / FM / CD / AUX / SiriusDC-Ready (USA only) Requires additional SiriusDC Connect Vehicle Tuner Class-D amplifier system will draw less power than a standard amplifier and produce little to no heat. Full tone and individual control of the volume in three locations on-board your vessel. The large rotary encoder and the large easy press buttons on the face control most operations. Simple to navigate, scroll through your iPod music library easily. Chassis is IPx5 Water Resistant- able to withstand high humidity, salt air and water splashes