speaker dimensions, Shaker 1000

I have the shaker head unit in my first 05 and the pioneer 6x8s and the sound is very good.
I just swapped out the stock speakers for another set of pioneers in my second 05. in the second one i just have the base cd player, and the difference in just changing the speakers is huge..
well worth swapping them out.
if you do the swap out yourself, be mindful of the rear window. the front doors are easy to do.
I do not know about the subs in the shaker 1000, but i believe the rears are 10 inches, and the doors are 6 inches.