Sedan Model

WARNING: This page is about a different car, the 2007 Subaru Outback and 2007 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the ground cable from the battery.
Remove the rear quarter trim. <Ref. to SEDAN MODEL , REMOVAL, Rear Quarter Trim .>
Disconnect the harness connectors and terminals.
Remove the curtain airbag module. <Ref. to REMOVAL .>
Remove the screws and detach the antenna amplifier.

Fig 1: Locating Antenna Amplifier Screws (Sedan Model)
Courtesy of SUBARU OF AMERICA, INC.