in the rear door panel
As far as I can tell the front and rear speakers are 6-3/4 in
6.5S 6.5S
4x6 in the dash and 6x9 in the rear
The 1988 Chevrolet Blazer front speakers measure three inches by four inches. The rear speakers measure four inches by five inches.
The 93 K1500 Blazer has 4 x 6 inch in the dash, and 4 x 10 inch in the rear.
There are 2, 4" x 10" speakers in the celing tward the rear of the full size blazer (next to the hatch glass).
The front speakers in a 1992 Toyota Celica are located in the front door and measure 6 1/2 inches. The dash speakers measure 4 inches. The rear side panel speakers and the rear deck speakers measure 6 3/4 inches.
The 2003 Chevrolet Blazer dashboard speakers measure 3.5 inches in diameter. The front door speakers will measure four inches by five inches. The rear speakers will measure four inches by five inches.
If its a 2 door the speakers are 6 X 9.
6.5" front and rear
Door and rear speakers are 4".
4x6 in dash 6.5 in door 6x9 in rear