Locate the white attachment point of the speaker panel’s gray ribbon cable to the computer’s motherboard, in the middle of the board just to the left of the CD drive (red marker). Insert the cable.
Align the top of the speaker panel with the computer’s frame (note purple markers). Allow the panel to rest in place and slide it to the left until the sides of the panel are flush with the computer.
Replace screw on the left-hand side of the computer (orange marker).