WARNING: This page is about a different car, the 2004 Pontiac Grand Am and 2004 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Accelerator Control Cable & Pedal Lever Assembly
Courtesy of GENERAL MOTORS CORP.
Remove the left sound insulator.
Disconnect the release cable (1) retainer from the lever assembly.