Does the center channel grill pop off from the top?
As an ex-audio industry guy (13 years in the stereo biz) I think the system is a little too bright in the midrange - so I'm hoping that disconnecting the center speaker might tone it down a little. Having a midrange speaker that close to angled glass tends to do screwy things to the sound anyway.
I really wish it had a better built-in eq. For a stock system, I still think its pretty impressive. It really just needs a little tweaking. Better quality tweeters might help.