My 2014 Model S base sound system was just okay. Nothing special. On the other hand, the base sound system in my Model X is a great deal better. So much better that I wonder if they accidentally gave me the UHFS in my Model X. It sounds incredibly good. Is there a way to tell which sound system is actually installed in my X? Is it different than the base S system? Has anyone else noticed that the base X system is better than the base S system?