Remote Control SECRETAUDIO SST Hidden Stereo Radio 200 watt amp Sub out USB AM/FM Stereo 200 watts 4x50  RF Remote Control (radio frequency no line of sight required, up to 40' range)  USB MP3/WMA Flash Drive Player  Alpha Numeric LCD Display Shows Artist / Song Titles for USB, Direct CD Player Control (CD Player optional)  10 Foot Cable from LCD Control Panel to Black Box (tuner/amp unit)  Power Antenna 12V Trigger Lead  Blue LED Illumination on Buttons and LCD Display with Contrast Control  LCD Flush Mount Trim Bezel Included Auxiliary Audio Input  4 Channel 3 Volt RCA Pre-Outs (for optional Amplifiers)  Subwoofer Pre-Out (for optional Subwoofer Amplifier)  Electronic Volume, Bass, Treble, Balance, Fader  5 Selectable iEQ Curves  pop/jazz/classic/beat/rock  Zero Memory Current Draw (will not drain car battery when unit not in use)  24 Station pre-sets (18FM / 6AM)  LCD Swivel Mount Bracket Included Radios are 12 volt and battery backup is not needed for memory. What's in the Box? - RF remote - RF receiver - cable from LCD to tuner amp (10') - tuner/amp - flush mount bezel - swivel bracket - the USB port is on a 12" lead coming of the back of the tuner/amp. As you can see there are many connections but you don't have to use them all. We've made this system as flexible as possible so you can make your sound system as elaborate as you want. Link to dimensions of SECRETAUDIO; http://www.casmfg.com/SST%20LCD%20DIMENSIONS.htm Please call us with any questions 1-800-671-9755