Yatour Digital Music Changer USB Sd AUX Mp3 Interface for Rd3 Peugeot Citroen / Rb3 Radios By Vdo/rm2 Radios By Clarion w/16GB USB Flash Drive _HUAHEE Yatour digital musci changer is a replacement of CD changer. It can be easily installed and used. Not change car original function . With Usb Sd Aux interface.Support play songs from SD/SDHC/MMC card, USB stick ,Aux device . Bluetooth adapter is optional . It can make travel more entertaining and increase. Come With 16GB USB Flash Drive(Gift)