Two different sets of instructions, depends on if you have a notch back or a hatchback.
Radio Replacement (Notchback) Removal Procedure
Tighten Tighten the audio system screws to 6 N·m (53 lb in).
Radio Replacement (Hatchback) Removal Procedure
Remove the instrument panel center lower cover using a flathead screwdriver.
Install the instrument panel center lower cover.