Can anyone tell me what the speaker sizes are in the 01 dakota? I finally got my head unit (a halfway decent one) and it sounds great but now I'm ready to upgrade the speakers also. Crutchfield gave me 3 sizes that it says fits the 01. they tell me 6.5, 5.25 and 4.0. whats what? the rear speaker cover area doesn't look like they are 6.5 and neither do the door speakers. I would like to order them and only tear everything apart once. I would rather not rip stuff apart, reinstall then have to rip it all apart again. Any help would be great. I have and 01 Dakota WITHOUT the infinity system, regular cab, base model. Thanks.