Car stereo additional functions android media compatible usb player integrated features radio usb player audio formats mp3 receiver tuners mw lw amfm tuner features rds radio data system rtp radio text plus ta traffic announcement af alternative frequency search station memory 18 total output power 4 x 50 watt connections aux in pre amp out ipod usb illuminated keypad red amplifier properties low pass filter balancefader command volume knob au