I looked for an adapter cable for connecting a USB stick to the MMI plug my A5 Sportback. The Audi workshop wanted to just under 35 have it. An insolence so the dependence of Audi owners exploit! So I searched the internet and found it at Amazon. The adapter cables offered here is of very good quality and works (daily use) after 1.5 months without complaint. This adapter cable is the check with Audi sold, the visual comparison and plug / socket-quality, in nothing! Why should I buy the adapter cable for almost double the price at Audi so?