I'm looking to make some upgrades to a Honda Element but without any significant cosmetic changes. In other words, use the existing speaker locations (including center sub), keep any amps and so forth hidden, etc. Does anyone own an Element and/or have any examples you could share? Mine is model year 2011 if that matters. I'm not looking to win any audio competition or wake the neighborhood, but to provide some practical upgrades from the stock system. I'm a DIYer and used to go hog-wild on my car audio systems in and just after college. The Element needs some love and thought I'd have a bit of fun with it.

Many thanks for any tips/suggestions/pics/etc.