pro audio

Say one purchases a base model of any engine size and gets the basic audio system. Is it possible to upgrade that with the Shaker Pro Audio system from the Mustang premium trims? Does Ford Motor Company or Ford dealerships offer that Shaker audio upgrade after vehicle purchase?

I am a fan of the new Mustang buuuuut: Packages are a horrible concept. In previous gens one could order a sleeper with the best radio. You can't get the pro audio without making the interior into a cigar lounge. The basic system not only looks like an old space shuttle but sounds like something...