Dell Alienware M17x R3 (Early 2011) - Manual (Page 88)

88 Speakers
10 Disconnect the speakers cable from the connector on the system board.
11 Note the speakers cable routing and remove the cable from the routing
guides on the computer base.
12 Remove the four screws that secure the speakers to the computer base.
13 Lift the speakers along with the cable off the computer base.
Replacing the Speakers
1 Follow the instructions in "Before You Begin" on page 9.
2 Align the screw holes on the speakers with the screw holes on the computer
base and route the speaker cables in the routing guides.
3 Replace the four screws that secure the speakers to the computer base.
4 Route the speakers cable through the routing guides on the computer
base.
1 speakers (2) 2 screws (4)
3 speakers cable
1
2
3