Outback Model

Disconnect the ground terminal from battery sensor. <Ref. to BATTERY , NOTE, Repair Contents.>
Remove the trim panel - rear apron RH. <Ref. to OUTBACK MODEL , REMOVAL, Rear Quarter Trim.>
Remove the woofer assembly.
1. Remove the bolt.
2. Disconnect the connector and remove the woofer assembly.
  
  Fig 1: Locating Woofer Assembly Bolts (Outback Model)
  Courtesy of SUBARU OF AMERICA, INC.