i have a 98 reg cab and i have stock 6x9 and put the same back in. i put pioneer in. and if its a quad cab i think its 5.25 in the back doors.
6x8
6.5 for the front
Crutchfield.com says that factory speakers in the 1998 Chevy Cavalier Sedan are: 4" x 6" door speakers and 6"x 9" rear carriage speakers.
front dash tweeters- 3.25" door speakers- 6.5" rear deck speakers- 6x9"
6x9's front doors and 5.25" in the rear
the rear are 6x9...if im not mistaken the fron are 4
The front speakers, in your 2008 Dodge avenger, will measure four inches by six inches. The back speakers will measure six inches by eight inches.
6 3/4 or 6 1/1
Go to Crutchfield.com and they will have all of the sizes of your factory size speakers for your car.
back speakers not sure what size
The dash has 3x5 and the door and rear deck speakers are 6x9. Enjoy. ChicagolandAreaModernMopars . com
You don't need factory speakers. Just buy the same size speakers and install.