POLY-PLANAR MRD-80 MARINE STEREO RECEIVER w/INTERNAL iPOD DOCK Full-featured, IP66 Waterproof stereo receiver designed specifically for the marine environment. Sirius Satellite Radio receiver comes built-in to all units. Features: 4-Channel x 45 Watt power out; Adjustable backlight on display; Rotary encoder style volume knob & function select knob; Selectable powered sub channel output; IR input - unit will interface w/PolyPlanar IR remote, IR receiver on face; Aux in, fixed line out, sub out, Sirius connection, iPod connection, USB output, wired remote cables, front/rear variable line out, SD card reader; Selectable EQ setup so user can select best audio setting for particular speakers; Closed cell foam gasket; Gimbel mount option (No covers or additional mounting boxes are required for installation). 2x16 Character digital display; Sun/dust cover for front face; PCB coating for resistance to moisture; Flip-down face for SD card, CD deck or iPod dock access; AM/FM frequencies