Subaru Impreza 2012 Instruction Manual page 329

Reference
Message
In iPod mode
iPod error.
Please check the iPod firmware version.
No music files found.
Searching iPod.
Please wait...
iPod authorization failed.
328 Other
Cause
Playback failure or communication abnormality.
A communication error, a playback error, the iPod
software is not supported, or a control target error.
No playable music data is stored in the iPod.
Displayed if play is not possible when the iPod source
is selected.
Also displayed when waiting for skip when up/down is
initially operated.
Failed to authorize the iPod, or reauthorization is
required.
Action
Reconnect the iPod.
Connect a playable iPod. Reconnect the iPod.
Connect an iPod in which playable music data is
stored.
Wait for a few moments before operating.
Reconnect the iPod.