Remove the following screws securing the camera data cable and right speaker to the upper case:

One 9.9 mm partially threaded Phillips screw

One 9.6 mm threaded Phillips screw

One 4 mm Phillips screw

Slide the camera cable bracket out from under the subwoofer and remove it from the computer.

The iSight cable has an eyelet through which passes the left-most screw in these pictures.