How to Hook Up RCA Jacks to a Stock Stereo

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To add an external amplifier to your car audio system you will need to connect the amplifier to your deck with RCA cables. Most stock stereos do not have RCA outputs to upgrade your system. In order to add an amplifier to a deck that does not have RCA outputs you will need to use a Hi/Lo converter. A Hi/Lo converter is designed to retrieve the signal from your speaker outputs and convert it into an RCA output.

Things You'll Need

  • Hi/Lo converter
  • Wire strippers
  • Electrical tape
  • Remove your deck and locate the speaker wires coming out of the back. Find the wires for your front right and left speakers. Depending on your vehicle and the deck the removal and the speaker wire location will vary. Consult your vehicle's owners manual for proper deck removal and speaker wire configuration.

  • Strip an inch of the jacket with your wire strippers off the right and left speaker wires three inches from the back of the deck. Do not remove the speaker wires from the deck. There will be four total wires that you will need to strip: the right positive and negative and the left positive and negative. This will expose the wires underneath the jacket to attach the Hi/Lo converter to.

  • Locate the wires coming off the Hi/Lo converter. There will be a positive and negative wire for the right and left channel. The wires will be clearly marked on the converter.

  • Take the positive wire for the right channel coming from the converter and wrap the bare wire around the exposed wire on the positive speaker wire for the right channel coming from the back of the deck. Secure the wires together by wrapping electrical tape around both wires.

  • Take the negative wire for the right channel coming from the converter and wrap the bare wire around the exposed wire on the negative speaker wire for the right channel coming from the back of the deck. Secure the wires together by wrapping electrical tape around both wires.

  • Take the positive wire for the left channel coming from the converter and wrap the bare wire around the exposed wire on the positive speaker wire for the left channel coming from the back of the deck. Secure the wires together by wrapping electrical tape around both wires.

  • Take the negative wire for the left channel coming from the converter and wrap the bare wire around the exposed wire on the negative speaker wire for the left channel coming from the back of the deck. Secure the wires together by wrapping electrical tape around both wires.

  • Plug your RCA cables into the red and white connections on the converter by matching the color of the plug on the cables with the color of the connection.

References

  • Photo Credit Jupiterimages/Polka Dot/Getty Images
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