VOLKSWAGEN RCD510 NEW VERSION SKODA RCD510 navigation module GPS navigation box can be added a reverse camera support Bluetooth|bluetooth pad|box ebookbluetooth to serial port adapter - AliExpress
Amazon.com: Amzparts RCD510 Radio 6 Disc CD MP3 Player Compatible for Golf Passat Tiguan Polo : Electronics
VW Polo DIY: Delphi RCD 510 headunit + 9W7 Bluetooth unit installation - Team-BHP