2011 Subaru Outback Owner's Manual - Page 219

5-28 Audio Check that the disc type (i.e., 8 cm/3 inch CDs are not supported) and data format are correct. This player can only play CDDA, MP3, WMA and AAC data formats. If the disc cannot be unloaded or this message remains displayed, please contact your SUBARU dealer. Auxiliary input jack By connecting a commercial audio product to the vehicle, such as a portable audio player, you can hear its sound via the vehicle's speaker. An auxiliary (AUX) input jack is equipped in the center console. A stereo mini pin plug (3.5ø) can be inserted in this jack. The connection cable is available at electrical appliance or similar stores. To use the AUX input jack: 1. Connect a portable audio player to the AUX input jack. 2. Press the AUX input selection button "CD/AUX" on the audio control panel to turn on the auxiliary audio input. 3. Play back the portable audio player. Refer to the Owner's Manual of the portable audio player. NOTE . The output sound of the portable audio player is not loud, and the sound via the vehicle's speakers that are connected to the vehicle audio set is very low. If you turn up the volume of the audio set, the volume becomes louder. However, when you change the player to the other portable audio player, the sound may become a lot louder. Turn down the volume when you change between them.