9-5 Linear (9600) L4-2.3L Turbo (2.3t) (2004)
5. Remove the rear roof cover and unplug the connections for the lighting.
6. Remove the right-hand D-pillar trim and the right-hand concealing panel support (3 screws).
7. Remove the five screws in the top of the right-hand side trim and lift out the trim.
8. Remove the bass speaker and unplug the connector.