How to Connect Phones to the AUX in Car Stereos

Written by stephen lilley
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An auxiliary cable is a common way to connect devices like cell phones and MP3 players to car stereos. By using this simple cable, you can transfer audio signals from your device to your car stereo, which will then be played over your car's speakers. If you have a cell phone, this can be a great way both to listen to music and take a call without using your hands while driving. The set-up process for an auxiliary cable is surprisingly simple.

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Things you need

  • Cell phone
  • Auxiliary cable
  • Car stereo

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  1. 1

    Plug one end of an auxiliary cable into the "headphone" jack on your cell phone. If you don't already have one, auxiliary cables can be purchased at any major electronics retailer such as Best Buy or CompUSA.

  2. 2

    Plug the other end of an auxiliary cable into the "AUX" jack on your car stereo receiver. Note that this jack must be present for the connection to work.

  3. 3

    Press the "AUX" button on your car stereo. This will switch your stereo over to the auxiliary input. At this point, any song you try to play on your cell phone or any call you make or receive will use your car stereo as speakers.

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