How to Change the Car Stereo in a 2003 Civic
- 1). Lift the hood of the Civic and disconnect the negative battery cable from the battery terminal. Use a 10 mm wrench to loosen the negative battery cable clamp and move the cable from the battery terminal.
- 2). Remove the trim panel that surrounds the gear selector lever with a trim panel removal tool.
- 3). Remove the two screws at the forward-most edge of the center console with a Phillips-head screwdriver.
- 4). Pull the lower dash panel (beneath the stereo assembly) from the dashboard.
- 5). Remove the two bolts under the center of the dashboard with an 8 mm socket and ratchet.
- 6). Slide the factory stereo assembly from the dashboard far enough to access the stereo wiring connected to the back of the factory radio.
- 7). Disconnect the stereo wiring from the rear panel of the stock stereo. Pull the black antenna cable from the back of the factory radio.
- 8). Pull the factory radio from the stereo mounting bracket
- 9). Insert the faceplate adapter into the Civic's empty stereo mounting dock.
- 10
Connect the stereo wiring to a wiring harness adapter. Consult the adapter manual for proper connection points. The plastic stereo wiring connectors plug into the harness adapter leads. - 11
Plug the wiring harness adapter leads into the corresponding outlets on the back panel of the new stereo. Plug the antenna cable into the new radio's FM antenna outlet. - 12
Slide the radio into the faceplate adapter until it snaps into place. - 13
Replace the bolts on the underside of the stereo mounting dock, beneath the dashboard. - 14
Replace the lower dash panel below the dashboard and screw in the two screws on the center console with the screwdriver. - 15
Replace the trim panel around the gear selector lever and press firmly to snap it into place. - 16
Place the negative battery cable onto the negative battery terminal lead and tighten the cable's clamp with the wrench. Close the Honda's hood.