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Amazon.com: Aramox Car USB AUX Audio Cable Switch & Cable for RCD510 RCD310 Golf/for GTI/R MK5 MK6 Jetta 5KD035724 : Automotive
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Biurlink Rcd510 Rns510 Rns315 Rcd310 Rcd300 Car Aux Usb Adapter Audio Cable Switch Plug For Volkswagen Passat Cc Golf Polo - Cables, Adapters & Sockets - AliExpress
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Car Radio Usb Interface Plugtransfer Cable For Vw Rcd510 Rcd300 Cd 4 Pin Changer Port To Standard Usb Port Socket For Skoda - Cables, Adapters & Sockets - AliExpress
VCDS - RCD300 - activate AUX function - YouTube
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Bluetooth USB SD MP3 Aux CD Changer Adapter for VW Radio Rcd 300 310 500 510 | eBay