Car stereo additional functions rds radio data system usb player beep tone support integrated features cd player radio usb player playback cd rrw audio formats mp3 receiver tuners mw lw amfm tuner features rds radio data system af alternative frequency search ta traffic announcement pty search programme types total output power 4 x 55 watt connections usb aux in pre amp out amplifier property balancefader command fascia mechanism removable fr