Well you did cut the deck lid no?
Nice setup though, but I wouldn't want my speakers centered like that. Only because of the look to be honest.
If it wasn't for the fact that I tried installing an amp and sub and have all the wiring ready to go I would probably settle for running a couple of strong 6x9s, but I have decent speakers all around that will provide loud highs for when I drop in the sub.
As an audiophile, I am suffering miserably with my setup. But it's better than when it had blown speakers all around and factory tape deck.