Not at all likely.
Back seat has to come out and the rear package tray too and then you can get to the bolts that hold the speakers in.
factory colors of oldsmobile cutlass supreme
In the back of the seat (both) you have a star screw bit that one you remove it you lift up on the back of the seat and the front will come up out of a groove that it slides into.
troubleshoot the coolant on a 1999 oldsmobile intruge
Underneath the back seat
15"
324 cubic inch
under the back seat! Under the back seat
The 1966 Oldsmobile Toronado fits that description.
it is built into the back window
Most gm back seats are the same. Push back on the bottom section & pull up from back of the bottom part. This should let the bottom part come off. Then the back part should be bolted at the bottom. Take the bolts out, and push up.