2013 GT Premium. Standard Shaker audio system. It’s the worst audio system I’ve had since my 1988 Chevy pickup I sold 23 years ago. What in the world? It sounds like listening to an old AM radio, while down in a tunnel, with ear muffs on. Surely this isn’t normal. Very hollow sound. No clarity. And certainly no bass. What’s the deal? Do I have a fuse blown for an amp somewhere? Are the speakers known to blow?