WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek and 2015 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Airbag System Components (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Identifying Airbag System Components (2 Of 2)