Get some new ones
The front door panels have 6 1/2" speakers and the rear speakers are 6x9"
According to http://www.installdr.com/Harnesses/GM-Wiring.pdf the connector for the rear speakers is separate from the front speakers. If the connector for the rear speakers is loose or disconnected, the rear speakers would not work while the front ones will. The amp in the head unit (dashboard radio) powers the front door speakers. The rear door speakers and roof (pillar) speakers in the rear are powered by a second amp under the drivers seat. Either this amp is bad or is not hooked up.
Both the front and rear are 4" door speakers, although it is not unheard of to fit 5.25" speakers in the front, and 6" in the back. Hope this helps!
Front door speakers are size 6x5 or 6x1/4
You have to remove the door panel, after that you will be able to replace the speaker.
Front door: 5-1/4" circular
6.5 Speakers both in-front and rear
How big are the door speakers in a 1996 Dodge Ram 1500 v8 5.9L?
; Front speakers : Front Door: 6-3/4" ; Rear speakers : Side Panel: 5x7"
; Front speakers : Front Door: 6-3/4" ; Rear speakers : Rear Deck: 6-3/4" with and without Bose system ; Front speakers : Front Door: 6-3/4" ; Rear speakers : Rear Deck: 6-3/4" with and without Bose system
what size speaker fits Mazda 626 1996 model front door
5X7 front and 6X9 rear on my 96 coupe