4"X6" inch oval .
The 1998 Chevrolet Blazer dashboard speakers measure four inches by three inches. There is a dashboard speaker on each side of the dashboard.
8 1/2s
6.5"
6X9 in the back and 4X6 in the front
6 1/2 front and rear
15.5 gallons
Circum
The 1989 Chevy Cavalier dashboard speakers measure 4.5 inches in diameter. There will be a speaker on each side of the dashboard.
6 1/2"
3.5 inch
6.75
the front speakers are 4"x6" the rear speakers are 3-1/2"