Car stereo additional functions usb player bluetooth integrated features cd player radio usb player playback cd rrw audio formats mp3 receiver tuners mw amfm tuner features rds radio data system eon enhanced other networks station memory 30 connections usb aux in display type lcd bluetooth profiles hfp spp a2dp avrcp pba pbap illuminated keypad blue ipodiphone compatibility ipod bluetooth features contact data transfer hands free telephony