The Honda Civic has been the subject of aftermarket customisation by car enthusiasts for years. Stereo upgrades are among the most common ways a Civic owner can modify his or her vehicle. Adding an amplifier to an aftermarket or stock stereo system will add power and clarity to any kind of music. Although you can mount the amplifier in several locations on the Civic, the boot provides an ideal combination of space, accessibility and much needed ventilation.
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Things you need
- 10mm wrench
- Amplifier wiring kit
- Phillips-head screwdriver
- Wiring harness adaptor
- Patch cables
- Trim panel removal tool
Lift the Civic's bonnet and disconnect the negative battery cable from the battery. Use a 10mm wrench to loosen the bolt that secures the cable to the battery post. Move the cable away from the battery.
Loosen the positive battery cable bolt and lift the cable from the positive battery lead post. Place the amplifier wiring kit ring terminal onto the positive post and place the positive battery cable on top of it.
Use a wrench to tighten the positive battery cable clamp to the post, securing the ring terminal and positive battery cable to the battery.
Remove the fuse from the ring terminal's fuse holder. Attach the power supply cable (from the amp wiring kit) to the ring terminal. Feed the power cable through the firewall of the Civic and into the inside of the vehicle. Move to the inner cabin of the Civic.
Remove the two screws at the top of the lower dash panel. The panel sits below the stereo and the screws can be removed with a Phillips-head screwdriver.
Use a screwdriver to remove the screw at the lower left corner of the lower dash panel.
Remove the two screws near the upper edge of the lower dash panel's opening. The screws hold the back side of the factory stereo inside the stereo mounting dock.
Slide the factory stereo out of the Civic's stereo dock.
Remove the stereo wiring connectors from the outlets on the rear panel of the factory stereo.
Plug the Honda stereo wiring connectors into the corresponding leads of the wiring harness adaptor. Plug the adaptor's leads into the outlets on the back of the stereo. The adaptor will make the amplifier wiring compatible with the Honda's stereo outlets.
Plug the patch cables into the available leads of the wiring harness adaptor. Feed the patch cables through the back of the Honda's stereo dock and down through the lower panel opening below the stereo dock.
Slide the stereo back into the stereo dock and screw in the two screws at the back of the stereo deck.
Replace the lower dash panel and screw in the three screws that secure the panel to the Honda's dashboard.
Route the patch cables to the boot of the vehicle along the passenger side of the car. Use a trim panel removal tool to lift the carpeting of the Civic near the door openings. Lay the cables beneath the carpeting on their way to the boot.
Lift the carpeting on the driver's side of the vehicle and lay the power supply cable beneath the carpeting. Lay the carpeting over the cables on both sides of the vehicle and press it firmly against the floor of the vehicle to secure it in place.
Feed the cables on both sides of the Civic through the sides of the rear seats and into the cargo area of the boot. Open the boot to gain access to the rear cargo area.
Plug the power cable into the power input on the amp. Plug the patch cables into the signal and turn-on lead outlets on the side of the amp (commonly the side opposite the power outlet).
Insert the grounding wire from the amp wiring kit into the grounding outlet on the amplifier. Connect the wire to a screw or bolt in the Civic's boot. Use a trim panel tool to lift the carpet in the boot of the car. Choose a bolt or screw that is no farther than 20 inches from the amplifier and directly connected to the vehicle's frame. Close the boot and return to the Civic's engine compartment.
Replace the negative battery cable clamp over the negative battery lead post. Use a wrench to tighten the cable's clamp to the post.
Place the fuse back into the ring terminal's fuse holder and close the Honda's bonnet.
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