Not bad of a resurrect on this thread - have seen worse.
The bass isn't bad (ducks), it's somewhat tight, and tuneful; if not a little subdued. You can do MUCH better with an aftermarket setup.
The tweets are a bit grainy and vague - that's my main problem.
Bottom line: you're not going to choose between one or the other trim based on getting the Bose stereo; it's ain't all that. Opt up for the Touring trim if you want all the other niceties (NAV option, leather, etc.).