I don't have my ride yet so can't tell you about audio but regarding the hard to start problem you should refer this to the dealer immediately. They can run the tests and hopefully fix it fast. Please let us know how you go on that. Regarding brake dust I have read other threads about this problem. I wonder if it is worse on automatics? I suspect this would be so as you would not be doing as much engine compression "breaking" as the stick shift. There may be harder pads that one can purchase but you have to ask the dealer again as there may be warranty problems since the harder pads could damage the discs. All new cars I have owned take a few ks to seat in the new brake pads. After that over a period of months you will get slight grooving of the discs. After several years you can get them "skimmed" back to perfect at a work shop.