How Do I Install a 2003 Honda Civic Stock Radio?

If you have upgraded the stereo system of your 2003 Honda Civic or purchased a used Civic and want to restore the factory stereo, you can do so without the benefit of extensive car audio experience. Before installing the factory stereo, you will need to remove the aftermarket stereo from the stereo mounting dock of the Civic. The aftermarket stereo is likely to have been adapted to fit within the stereo mounting dock along with the Civic stereo wiring. Connecting the stereo wiring to the factory stereo may require a wiring harness adapter.

Things You'll Need

  • 10 mm wrench
  • 8 mm socket
  • Ratchet
  • Trim panel removal tool
  • Phillips head screwdriver
  • Installation sleeve
  • Wiring harness adapter
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Instructions

    • 1

      Park the Honda Civic and turn the engine off. Pull the hood release lever located on the driver's side of the vehicle then lift the hood. 

    • 2

      Loosen the bolt that secures the negative battery cable to the negative battery terminal lead post with a 10 mm wrench. Lift the cable away from the battery. 

    • 3

      Open the ashtray. Loosen the bolt at the upper edge of the ashtray opening with an 8 mm socket and ratchet. Pry the trim panel that surrounds the stereo and climate controls from the dashboard with a trim panel removal tool. Slide the panel away from the dashboard. 

    • 4

      Disconnect the wiring connectors plugged into the rear panel of the stereo. Unplug the antenna cable connected to the back of the stereo. Remove the two screws on either side of the stereo mounting bracket with a Phillips head screwdriver. Slide the stereo from the bracket. 

    • 5

      Plug the stereo wiring connectors into the wiring harness adapter leads. Slide the installation sleeve into the stereo mounting bracket and replace the two screws on either side with the screwdriver. Slide the stock stereo into the installation sleeve. 

    • 6

      Plug the wiring harness adapter leads into the corresponding outlets on the back of the new stereo. Plug the antenna cable into the FM antenna outlet on the rear panel of the factory stereo. 

    • 7

      Slide the entire trim panel and stereo bracket into the dashboard stereo dock. Press firmly around the perimeter of the trim panel to snap it back into place in the dashboard. Replace the ashtray below the stereo assembly.

    • 8

      Place the negative battery cable clamp around the negative battery terminal and tighten the bolt that secures the cable's clamp to the post with the 10 mm wrench. Close the Honda Civic's hood.

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