Prospec Electronics MBB-218S JBL Marine Sirius 3.0-Ready AM/FM Receiver 4 x 45 Watts Waterproof and flip-down face Line output terminals (x 2 pair) and iPod Ready (aux in) Positive display and the unique two-line display Rotary encoder multi-control Wired remote ready Bass/treble/balance controls and random/repeat/play Preamp fader control and electronic volume control Detachable control panel with carrying case Black Box Inch Stereo Sold Separately (Required for Use) Installation size: 7-1/8 W x 2-1/8 H x 6-3/4 D Overall Size: 7-3/8 W x 2-1/4 H x 1 D