4x6- not upgradable without sheetmetal modifications.
5X7 all around
all speakers are 5"x7" - its a special size for cars made by ford motor company
According to sonicelectronics.com database both front and rear stock speakers are 6"x8"
215 75 r15 The correct tire size is listed in your owner's manual and on the driver's door post.
my tire sizes for my cougar are P215/50R16 or go here so you can find your size http://www.dragtimes.com/Mercury-Cougar-Tires-m31-n237.html
I believe that there are two speaker grills on the dash they are 3.5 In. Than in the doors its 6in and in the rear it 6x8 but I put some 6x9 in mine!
215/50r16
What is the motor size? Run1
6.5 inch round speakers
205/75R14
What is the motor size? Run1
6 x 8