How to Install Subwoofers

Most automobile manufacturers do not consider subwoofers standard car stereo equipment. So if you want to beef up your bass, you will need to mount them yourself. Installing subwoofers is a tricky proposition but these steps can help you do the job yourself.

Things You'll Need

• Subwoofers
• Amplifier
• Ready-made amplifier kit (optional)
• Power cable
• Screwdriver
• Crimpers
• Fuse holder
• Fuses
• Wire cutters
• Wire ties
• Thread cutting screws
• Electrical tape
• Speaker, remote and signal wire
• Cordless screwdriver
• Flashlight
• Knife
• Adequate lighting

Instructions

1. Study the directions for installing the subwoofer and make sure you have the tools and mechanical expertise to undertake the project.

2. Gather and assemble everything you will need to install your subwoofers, then detach your car's negative battery terminal.

3. Fasten a ring terminal to the end of the power cable and attach it to the battery's positive terminal. Locate a spot nearby for the fuse holder and join it to the battery wire. Attach the end of the remaining wire to the other side of the fuse holder. The fuse should not be in the holder.

4. Locate a spot where the wire can be brought through the firewall and inside the car. Ideally, the opening should go to one of the foot wells.

5. Push and pull the wire through the opening and below the flooring until it reaches the subwoofer on the door frame or under the carpet. Extend it to the amplifier and verify the distance. Play it safe by tacking on several more feet. Cut the wire and hook up the amplifier.

6. Find some bare metal or a sturdy bolt that runs inside the car several feet from the amplifier. When connecting to bare metal crease a ring terminal to the ground cable and attach it to the body with a thread cutting screw. If making an existing bolt connection, place a ring terminal on the body bolt. Now you are ready to join the ground to the amplifier.

7. Follow the manual instructions on running remote and signal wires. Attach them to the amplifier and verify all your links.

8. Test your amplifier and subwoofers and select your settings. Hook the negative battery terminal back up. With the fuse holder empty, activate your car's accessory power ignition to verify that everything works and none of the fuses are bad.

9. Turn off the ignition to accessory power and place the fuse into the holder, connecting the amplifier. Verify the settings on your subwoofer. Activate the accessory power and switch on the radio. The sound of a bass line indicates a successful subwoofer installation.

Tips & Warnings

• Mount your amplifier in a level, open area that is conducive to cooling.

• Do not affix the amp directly to your car's chassis.

• Rusty metal can be cleaned by sanding and then rubbing clean.

• Installing the fuse should be the final step.

• Ready-made amplifier kits come with everything you need to install your subwoofers.