sony decks....nice. sony speakers.....not so nice. my friend but an Xplode deck in his stock civic and it made it sound real clean. the wattage of the deck will increase the speaker sound itself but the speakers might kick it up a notch, especially if you throw some 3-ways in the back. just read up on the specs and look at like wattage (both the range and peak powers). www.carstereomall.com usually has sick deals on their merchandise, like way off retail prices. enjoy.....