Audi A3 MMI no sound. Quoted £4.5k by Audi Northampton to fix A3 MMI unit and told there was no other option. Oh and they tried to get me to trade up instead. Found Revtronic via google search. They explained how even I could easily remove the unit in the glove box.
Posted unit midday on Monday and received back Thursday afternoon via UPS. I’m not in anyway technical. Putting it back in was even easier and took less than 5 mins. Total cost £325 all in. Not sure how Audi can justify