How to Use an iPhone Headphone Jack as Audio Output


Most of the time, you probably plug your headphones into your iPhone and listen to your phone calls or your music by yourself. However, you may sometimes want to share your media over a speaker system or hook up your iPhone to your car radio to avoid the danger of using headphones while driving. Many modern devices are specially enabled so you can put your iPhone right on their dock. If you don't have one of these devices, you can still use your iPhone's headphone jack for audio output -- you just have to use an auxiliary cable.

Things You'll Need

  • 3.5 mm mini stereo to RCA adapter cable
  • Purchase a 3.5 mm mini stereo to RCA adapter cable, also known as an auxiliary cable, at a local electronics store or on the Apple website. This cable looks like it has a headphone plug on both ends.

  • Plug one end of the cable into your iPhone's headphone jack. Turn your iPhone's volume down to below 50 percent to avoid damaging your speakers.

  • Plug the other end of the cable into the auxiliary port -- usually labeled AUX -- of whatever device you want to use to play your iPhone, such as your car radio or your home stereo system.

  • Tap the "iPod" app on your iPhone's home page, and operate it as normal. You could also play other audio and music apps, such as Pandora, or you could play your own voice memos.

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  • Photo Credit Chris Hondros/Getty Images News/Getty Images
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