A: Removal

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the ground cable from battery.
Remove the spot map light. < Refer to REMOVAL , Spot Map Light. >
Remove the room light. < Refer to REMOVAL , Room Light. >
Remove the sun visor. < Refer to REMOVAL , Sun Visor. >
Remove the assist grip. < Refer to REMOVAL , Assist Grip. >
Remove the upper inner trim. < Refer to REMOVAL , Upper Inner Trim. >
Remove the rear quarter trim. < Refer to REMOVAL , Rear Quarter Trim. >
Remove the sunroof opening trim. (model with sunroof)

Fig 1: Identifying Sunroof Opening Trim
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the harness connectors of the right and left front pillars, and the rear quarter (LH).
Remove the clips, and then remove the roof trim.

Fig 2: Identifying Roof Trim And Clips
Courtesy of SUBARU OF AMERICA, INC.