Car stereo additional functions rds radio data system usb player id3 tag bluetooth android media compatible nfc integrated features cd player usb player radio playback cd rrw audio formats flac mp3 wma aac receiver tuner amfm tuner feature eon enhanced other networks station memory 18 total output power 4 x 55 watt connections usb aux in pre amp out bluetooth profiles a2dp avrcp hfp spp pba pbap illuminated keypad blue amplifier properties