... ect, CD sound quality , no FM noise., support USB/SD/AUX Car mp3 player USB/SD/3.5 AUX for Nissan/V.W/Honda ... music from radio buttons, Track+/-/Disk +/-/Rpt/Radom control etc are available3. SD card or USB flash,3.5AUX are available(up ... port design make Auxiliary input and Micphone jack work separately.5.Widely extend external audio source ,like PC,MD,PSP,GPS Navigation ...