I had to replace my radio module because water got in the back near the battery. My dealer told me it was 500.00 for the module and 375.00 for the labor. I could not believe that me and my brother did all of this for 175.00 and in 15 minutes. Yes, 175.00 the cost of a radio module we found on ebay. Incredible. The BMW Dealer is a piece of work.