Car stereo additional functions rds radio data system usb player id3 tag integrated features cd player radio usb player playback cd rrw audio formats mp3 receiver tuners mw lw amfm tuner features rds radio data system bsm best stations memory eon enhanced other networks pty search programme types station memory 24 total output power 4 x 50 watt connections usb aux in pre amp out amplifier properties high pass filter mos fet amplifier source