Thanks for the advice. Non ac car so should be straight forward.Bottom half of the glovebox liner can be unscrewed and dropped down and out of the way for the speaker swap. trying to get the liner out from under the dash can ruin it.
does the car have factory AC? If so it is a challenge to get under there.
there are 4 nuts holding the speaker up. They point straight down. The studs are made into the speaker grille so they won’t spin. 3/8” socket