Subwoofer Speaker

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Remove rear parcel shelf finisher. Refer to "REAR PARCEL SHELF FINISHER ".
Remove screws and subwoofer.
Disconnect subwoofer connector.
Install in the reverse order of removal, noting the following:

Subwoofer mounting screws:

: 2.7 - 3.7 N-m (0.28 - 0.38 kg-m, 24 - 33 in-lb)

Fig 1: Removing/Installing Screws And Subwoofer
Courtesy of NISSAN MOTOR CO., U.S.A.