How to Hook an MP3 Player to a Car Radio Without an AUX Plug


Whether it's a road trip, a long commute or just a run to the store, some good tunes can make any car ride more fun, and there are no better tunes than the ones you've put on your MP3 player yourself. Some newer models have auxiliary jacks for connecting audio devices via a 3.5 mm cord, but it's far from standard. Fortunately, there are other ways to play an MP3 player's output over a car radio.

Things You'll Need

  • FM transmitter or cassette adapter

FM Transmitter

  • Insert batteries into the FM transmitter or connect it to the cigarette lighter socket, then turn it on.

  • Select a frequency on the transmitter, or use the auto-selection function if available. If you manually select a frequency, choose one that's not in use by a local radio station.

  • Plug the FM transmitter's 3.5 mm input cable into the 3.5 mm (headphone) jack on the MP3 player.

  • Tune the car radio to the frequency selected in Step 2. Turn down the volume.

Cassette Adapter

  • Plug the cassette adapter's 3.5 mm input cable into the 3.5 mm (headphone) jack on the MP3 player.

  • Insert the cassette adapter into the car radio's cassette deck.

  • Set the car radio to "Cassette."

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  • Photo Credit Jupiterimages/Polka Dot/Getty Images
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