front speakers: 6 1/2 rear speakers: 6x8
They have 6.5" speakers.
5 x 7
Generally 8 by 5 ½.
For the front door speakers in a 1997 Honda Civic, the left front speaker wire (+) is blue and the left front speaker wire (-) is gray/black. For the right side, the front speaker wire (+) is red/green, and the right front speaker wire (-) is brown/black.
You can go to Crutchfield.com to find speaker size compatibility for your specific make and model.
For the 1997 Toyota Corolla, the left front speaker wire + is pink. The left front speaker wire - is purple. The right front speaker wire + is light green, and the right front - is blue. The left rear + is black and the left rear - is yellow. The right rear + is red and the right rear - is white.
6in round in the front doors and 6x9in oval on the rears
The front speakers in a 1997 Ford Mustang convertible measure 6 inches by 8 inches. The rear side panel speakers measure 6 1/2 inches. The rear deck speakers measure 6 inches by 8 inches.