Subaru Impreza Manuals 2012 Impreza Owner's Manual | Page 236

5-24 Audio . In some cases, when the sound volume of the portable audio player is low, the sound quality may become impaired when you turn up the volume of the vehicle audio system. In this case, adjust the sound volume of the portable audio player. . In some cases, noise occurs because of a bad connection between the portable player and the vehicle audio system. Try cleaning the stereo jack and audio plug. . If the noise is not reduced, check for disconnection of the cord or a malfunction of the portable player. Precautions to observe when handling a compact disc Use only compact discs (CDs, CD-Rs and CD-RWs) that have the mark shown in the following. Also, some compact discs cannot be played.