Can I use my iPod Hi-Fi to listen to audio from a different source?
Your iPod Hi-Fi has a digital/analog audio input port. You can use it to play music from an iPod that doesn’t have a dock connector or from other audio devices, such as a CD player, stereo receiver, or computer. If you have an AirPort Express Base Station, you can connect it to iPod Hi-Fi and play music from a computer in another room using AirTunes. You connect audio devices or an older iPod using an audio cable with a standard 3.5 mm stereo miniplug. For higher-quality sound, you can connect an optical digital audio device using an S/PDIF optical digital audio cable with a Mini-Toslink connector.