Delphi SA10221 - Manual (Page 30)

Using the Delphi Premium Sound System
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sound. Sound that seems normal can be loud and harmful to your hearing.
Take precautions by adjusting the volume control on your audio system to a
safe sound level before your hearing adapts to it.
To help avoid hearing loss or damage, do the following:
1. Adjust the volume control to the lowest setting.
2. Increase volume slowly until you hear comfortably and clearly.
Aux Input
To plug in your MP3 player, CD player, or other audio device, the Delphi
Premium Sound System is equipped with an auxiliary 3.5 mm input jack
located in the rear of the unit. Connection cables are not included.