ok here are the specs straight from Crutchfield's audio mag:
Front doors:6.5"
Rear doors:6.75"
Roof above barn doors:4"x10"
if you need any further help just goto
www.crutchfield.com and on the left side under car audio click 'what fits my car' and enter your info and that way you can find out what fits in the stock places so you don't have to have any customization done, oh, but unless you want to, i wouldn't buy from them, they are kind of expensive. just a thought. hope this could help