1. Disconnect the ground cable from the battery.
2. Remove the spot map light. 
3. Remove the room light.
4. Remove the sun visor.
5. Remove the assist grip.
6. Remove the upper inner trim.
7. Remove the rear quarter trim.
8. Disconnect the harness connectors of the right and left front pillars, and the rear quarter (LH).
9. Remove the clips, and then remove the roof trim.
CAUTION:
Do not remove the roof end trim using excessive force; doing so may damage the roof trim. The roof trim and roof end trim are fastened by screws.