Dell Alienware M14x R2 (Early 2012) - Manual (Page 60)

3 Lift the subwoofer along with the cable off the computer base.
1
2
1 subwoofer cable 2 subwoofer
Replacing the Subwoofer
Procedure
1 Align the slots on the subwoofer with the alignment posts on
the computer base.
2 Route the subwoofer cable through the routing guides.
3 Connect the subwoofer cable to the connector on the system board.
Postrequisites
1 Replace the palm-rest assembly.
See "Replacing the Palm-Rest Assembly" on page 44.
2 Replace the keyboard. See "Replacing the Keyboard" on page 39.
3 Replace the center-control cover.
See "Replacing the Center-Control Cover" on page 35.
Subwoofer 62