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How to Add a USB Port to a Car Stereo

by Greyson Ferguson

Most MP3 players connect to a USB port on your computer when you want to add or remove music. If you want to listen to the music from your MP3 player on a car stereo system an option you have is connecting the device via a USB port. However, most vehicles do not have a built-in USB port. You can easily install a USB port, as long as your car stereo has an Aux port.

Step 1

Plug the Aux to RCA splitter cable into the Aux port of your stereo system. The Aux port looks similar to the headphones port on your MP3 player. The two split ends on the cable are red and white audio cables.

Step 2

Plug the RCA cables into the RCA end of the RCA to USB cable. This cable has the two audio cables and merge into a USB cable. You can find this particular cable at most electronic stores.

Step 3

Plug the USB cable into the device you want connected to the car stereo (such as an MP3 player).

Set your car stereo to "Aux" and press "Play" on the MP3 player. The music now plays from your MP3 player over the car stereo system.

Items you will need

  • Car stereo with Aux port
  • Aux to RCA splitter cable
  • RCA to USB cable
  • MP3 player

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