Magnetic GPS Antenna with Fakra Connector Plug 5 Metre Cable Adapter Magnetic Base for Audi RNS-E/Mini/BNS/MMI A3 A4 A5 A6 A8 TT Q5 R8 MFD2 MFD3: Amazon.de: Electronics & Photo
Shark Fin GPS Antenna Removal and Replacement / Repair on an Audi A6 C6 4F (2004 - 2011) - YouTube
Eightwood Active GPS Antenna Fakra'C" Female Adapter Right Angle Fakra Adapter with 3M Antenna Extension Cable for Golf GPS Navigation System GPS Receivers Car DVR GPS Module : Amazon.nl: Electronics & Photo
Navigation issues - Audi A6 (C7) Forum - Audi Owners Club (UK)