Removal Procedure

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

The intermediate carpet is shaped and form fitted to the rear intermediate body panel and tucked under the adjoining trim panels and over the floor carpet.

Slide the seats forward.
Pull the carpet from under the adjoining trim panels.
Remove the intermediate carpet.

Fig 1: Identifying Intermediate Body Panel
Courtesy of GENERAL MOTORS CORP.