the back panels can be removed by gripping the end of the panel from the trunk side and pull outward s gently there are several clips that needs to be disengaged for it to come out. As for the front i have no idea..
Remove the dash pad, then remove the speakers from the dash frame. For the rear speakers, open the trunk and remove the brackets, that hold the speakers in place. not for the back speakers ..you have to remove the lower rear seat then remove the seat belts then the rear seat back then remove the header panels in the back seat then remove the deck cover ..the rear speakers are bolted in from the top down under the rear deck cover....and the front speakers i believe are mounted in the door panels in the front doors ..you have to remove the door panels to remove them .some do have them in the dash also if they are there u do as the person stated before me.
Remove the door panels and unscrew the grills, then unscrew the speakers
If your talking about the door speakers then you will have to remove the door panels to get to the speakers.
the rear speakers are located in the back doors. you have to remove the door panels to get at them.
The ones in the front doors aren't covers, they just look like it. You have to remove the door panel to get to the speakers. The rear deck comes off by removing the rear seat and the rear interior panels. After you do those things you can slide the rear deck off and expose the rear speakers.
For the front speakers you need to take off the dash pad and the rear speakers you need to take off the rear speaker panels.
The front door panels have 6 1/2" speakers and the rear speakers are 6x9"
See the answer for the 93 model if you're referring to the rear ones. If you want to replace the front ones, you have to remove the door panels.
That really depends on what year the regal is. For the early 90's there are two speakers located in the trunk directly below the rear window which are visible from inside the trunk, and there are two speakers located in the top of the dashboard which are accessible by removing the speaker grills. For later model Buick regals the rear speakers are the same, but the front speakers are located in the front door panels (you have to remove the door panels to access the wires).
GH
unbolt the door panel for rear, or loosen clips on front doors. then pop off and there ya go
You will need to remove the inner panels to gain access.