based upon multiples mustang forums both front and back are 6x8
http://incolor.inetnebr.com/weisinator/fitment/Ford/mustang.htm
thank you
6X9 in back and 4X6 in front
6.5"
Remove speaker grill, remove screw holding speaker, screws to the mirror are behind speaker
I dont know what the sizes are, but if you go to crutchfield.com they used to have a vehicle llokup chart that would tell you the speaker sizes for different vehicles. Even the catalogs will. Hope this helps you.
6.5" front and back
door 6.5 rear 6.5 or 6x9
The front speaker sizes are 6 1/2". The rear are also 6 1/2".
6x8 for both front and back door panels
Waht are the stock size for all speakers in a 2000 suburban, 4X4?
The front speakers on a 2000 Pontiac Grand Am are 4x6. The rear speakers on a Pontiac Grand Am are 6x9.
6 1/4 front and 6X9 rear.