I recently bought a 2013 XTS platinum. I am having a problem with the quality of the sound. It sounds like a speaker is blown, but I cannot isolate the problem. I took the car to the dealer, but the service person said that this is a known problem and it cannot be fixed. I find it hard to believe that Bose designed speakers with a serious flaw. I read other posts, but did not see a solution to the problem. I really enjoy the car, but this is a real problem.