HP EXPANSION BASE 344524-001 - Manual (Page 48)

Removal and Replacement Procedures
Maintenance and Service Guide 5–19
8. Rotate the chassis 180 degrees toward you.
9. Slide the speaker assembly away from you 1 to disengage it
from the chassis.
10. Lift the edge of the speaker assembly to remove it from the
chassis 2.
Removing the speaker assembly
Reverse the above procedure to install the speaker assembly.