I just got my '05 Z Enthusiast last week and found the site last night. I have spent a large amount of time reading and investigating what to do with the stereo. Any one have any suggestions as to what set of component speakers will work in the front door? I know that there is a depth problem with the window. Just how deep can the speaker be before the window becomes an issue? Also what tweaters will fit (if any) in the stock position? Also is it worth replacing the rear speakers? Any recommendations on decks? I am also considering putting in a sub, and would like to use the stock position that would normally have the bose sub. Has anyone tried this, what kind of sub did they use and where did they mount the amp? Finally, how difficult is it to DIY in an AT? I don't have a lot of experience in removing panels and dashboards and such so is this something I can do on my own if I take my time or should I spend the $350 or so to pay someone to install it? Thanks for any advice.