SolidPin Android Smart Phone iPhone USB MP3/Hard Drive Audio Music to AMI MMI Adapter Cable for Audi A3 S4 A5 S5 A6 S6 A7 A8 Q5 Q7 R8 TT TTS 2009 Type: Auxiliary Input adapter Transmits audio from MP3 players, mobile phones, tablets, and USB portable external hard drives. Perfectly matches the factory-fitted Audi Music Interface. Replace Audi part 4F0051510H. Please consult your Audi user manual or local dealer for correct AMI/MMI part number. Original standard design, 27cm in Length, with wire diameter 5mm Plug & play, supports hot-plugging.