1、Applicable Model: The bluetooth module replacement for RNS‑E navigation (navigation plus), replacement for A3 A4 A6 A8 TT R8 etc. 2、Easy Connection: Bluetooth 0 version, not need password when connecting. Just plug the 32pin connector into the socket back of your radio. 3、Multiple Audio Formats: Auxiliary cable support MP3 audio format as well as WMA, WAV and other high‑quality audio formats. 4、Simple Operation: Match your phone or pad to bluetooth module. And choose Aux from your radio, then you can use your phone to play music through car speakers. 5、Strong Compatibility: With wide compatibility, so you can hear music from your phone/pad/mp3 while driving. (They have blueooth function). 1 x Radio Stereo AUX Cable4 x Accessory Item Type: Radio Stereo AUX CableMaterial: ABSBluetooth: 5.0Fitment:Replacement for RNS-E navigation (navigation plus)Replacement for A3 2004-2005Replacement for A4 2004-2005Replacement for A6 2004-2005Replacement for A8 2001-2002Replacement for TT 2001-2002Replacement for R8 2001-2002Replacement for GallardoIn a few models is to be encoded on AUX-IN after installing the vehicle.Not suitable for vehicles with factory fitted for AMI / for MMI ( music interface) The navigation must be at least. Have a software index of 650 feature.For RNS-E audio aux source activation is a quick procedure. Your radio navigation system (also called Navigation Plus) can play AUX-IN audio sources (stereo line-in), so you can connect your phone with your cars sound system.For RNS-E audio aux – Activation tools: for VCDS or other diagnostic interfaceFor RNS-E audio aux – for VCDS coding: 1. Connect with module 37 – Navigation. 2. Choose procedure 07 – Coding. 3. Read original coding (e.g. 0205115). Write down this number. 4. Change second to last digit by adding +4 to current value. E.g. 0205155. 5. Enter and save new coding. 6. Exit.From now on when you go to CD/TV → Source (or MEDIA → Source) you will see AUX option. Choose it and for RNS-E will start playing audio directly from your addition audio source.