Flip the projector right side up and unscrew the two 12mm screws on the light bulb panel located at the rear of the projector with a Phillips #0 screw head.
The bottom right panel screw does not come completely out the panel door.
Locate the two speaker wires connected to the sound and audio motherboard on the left panel opposite of the speaker. Unsolder these connections with a soldering iron.
Once the wires are disconnected, in order to fully remove the speaker you may need to cut the plastic bands holding the speaker wires in place.
Need some help? Follow this guide to learn soldering basics.
To get to the connections on the motherboard, you will need to peel off the hot glue covering them.
While unsoldering, the metal connections can get very hot. Never touch the iron with your hand. Also, make sure that the projector is fully turned off and not plugged in.