2001 SS speaker sizes

anyone know the sizes of the stock speakers and the subs in the back?

6.5 all around

ok thanks
do you know how thick of a speaker will fit?

I run infinity kappas all around and didn't have any problem and I know that those are some of the deepest speakers around. 2 3/4 to 3 inches deep or so.

never measured but ive fit 3" speakers before no issues

You can also put 6.75" in both locations ,I believe you could fit a 8" speakers in the sub locations: with a little metal trimming around the sides. As long as their not to deep,Like a shallow sub. IMO