How Do iPods Work in Cars?

Overview

Connect the iPod to the Stereo

There are several ways to connect your iPod to the car stereo. Many modern cars have standard iPod integration, and many have specialized docks made just for iPod. However, if your car does not have these ports, fear not, there are still ways to connect your iPod to the stereo. If your car has a line-in jack, you can connect your iPod through there via a double-ended audio jack to connect the line-in jack with your iPod's headphone jack. You can also use a short-wave radio transmitter to broadcast the songs from your iPod to your stereo's radio.

Sound is Transmitted Through the Car's Stereo

The iPod is an axillary device that is not part of your stereo, so the sound will have to be transmitted through it. This is opposed to the stereo actually being the source of the sound itself. Unfortunately, this can create a bit of a lag. This lag is only a few fractions of a second if your car has an integrated port, but if you are using a line-in or radio transmission device, the lag can be a full second or two, and is more perceptible.

Sound Comes out Through the Car's Stereo

The signal that comes from your iPod, after being channeled through your car's stereo in some form, will eventually play out your speakers. The sound quality will vary depending on your connection method. A direct port will produce the best sound, but a line-in jack will also produce clear, stereo sound. Radio transmitters produce the lowest quality sound, and the broadcast can be choppy. Stereo sound may be available with broadcast transmitters, but the quality varies between brands.

Resources

• Apple's iPod Car Integration Page