I just got my MS but how do I know the premium sound is included besides the package being stated on the price sheet? I didnt really test drive one without it so i dont know the difference. I have an equalizer with the following modes: off standard and high. I honestly cant tell the difference on the Bass on any of those modes and I was suppose to have two subs and I cant even tell that they are on. I checked my trunk and I dont see any subs there nor noticeable tweeters inside the car. Are the tweeters and subs suppose to be hidden? Also if someone can recommend a good equalizer setup to test the Bass that would be lovely since apparently setting it up to max on all modes (off stndard and high) doesn't sound different.