Car stereo additional functions rds radio data system usb player id3 tag bluetooth integrated features car radio with screen cd player radio usb player dvd player sd card reader playback cd rrw audio formats mp3 video formats mpeg 4 receiver tuners mw amfm tuner features af alternative frequency search pty search programme types rds radio data system ta traffic announcement station memory 30 total output power 4 x 50 watt connections rear vie