Apple iMac G5 - Manual (Page 33)

Chapter 3 Using Your Computer 33
Use the Sound pane of System Preferences to select the audio input or output device
you want to use.
For More Information on Using Audio
Additional information about using audio is available in Mac OS Help (see page 22).
Choose Help > Mac Help and search for “audio” or “music.” For information on audio
and music products you can use with your iMac G5, check the Macintosh Products
Guide at www.apple.com/guide.
Audio line in port