The oven makes a sharp, annoying beeping sound when finished that wakes up our baby. Is it possible to remove the speaker...

after trying everything suggested by the youtube video in @soumya's comment to no avail, i drilled out the pentalobe screw very carefully with the smallest bit i had on hand (0.04"). slow and steady did the trick- there's nothing too fragile right behind the screw so it is possible to drill it out without damaging anything else.