Aux Adapter,Yomikoo Car USB Mp3 Player Interface AUX in Adapter Connect 3.5mm for VW 12pin 2009-2011 Beetle 2003-2011 Jetta 2004-2011 Passat 2005-2011 Polo 2007-2011 Tiguan Skoda 2007-2011 Octavia 3.5mm Aux interface for listening music,but NOT support radio panel control. USB interface for U disk and card reader, support mp3&WMA songs. Not work with Navi radio or DVD radio. Not work with audi MMI system. Not compatible with 2011 and newer RCD310 / RCD500 / RCD510 / RNS300 / RNS310 / RNS510 / Swing Works for: A3 2008-2010, A4/S4 2007-2009, TT 2007-2010, R8 2006-2009; VW Beetle 2009-2011, EOS 2007-2011, Fox 2004-2011, Golf/GTI/R32 2004-2011, Jetta 2003-2011, Passat 2004-2011, Polo 2005-2011, Rabbit 2007-2011, TS 2003-2011, Tiguan 2007-2011, Touareg 2002-2011, Touran 2003-2011; Skoda SuperB 2008-2011, Octavia 2007-2011; Seat Altea 2005-2010, Leon 2006-2010, Toledo 2006-2010 Connect through the car CD player directly,Non-destructive installation. Control the music play and volume by Car radio panel. Support 3.5mm AUX audio input. High quality MP3/WMA decoder, let the music more pretty. The GDN wire must be connect to the radio shell. Please make sure that the U Disk or Memory card is FAT format. Please confirm the radio interface before you order it. The Splitter/Y cable is needed if the CD changer port is occupied by others (except for being occupied by CD Changer). Support USB Flash,SD Card and 3.5mm jack input. Please make sure that the U Disk or Memory card is FAT format. The folders should be name them CD1,CD2,CD3...etc