Wocst Aux Cable for Audi AMI MDI MMI USB Audio MP3 music interface Adapter for Audi A3/A4/A5/ A6/A8/S4/S6/S8/ Q5/Q7/R8/ TT Plug and Play, Original standard design Super anti-electromagnetic interference design Perfectly matching with the original car interface and usage space Supporting high-speed USB 2.0 data transfer protocol 5 Year Warranty