I have a February 2016 Model S without the premium upgrades so everything is standard at that time. My partner got the Model 3 which has obviously has the premium upgrades (since there was no option without). The sound system in the Model 3 sounds much better than my Model S, but I'm no audiophile so I don't have the proper words to describe why. I'd really like to see if it's possible to upgrade the sound system in my Model S to either meet or exceed the quality of the Model 3 but I'm pretty hopeless about how to go about it. Is there anywhere to find the specifics or perhaps folks who have seen both know what could be done to enhance the Model S sound system? I've seen mentions over the years about owners upgrading to Reus though I haven't read through them. Is that the best option for aftermarket? Any other options?