how to install a subwoofer in a car

Although installing a subwoofer in your car may appear difficult, it is rather simple if you have adequate information. In this guide, we’ll walk you through all the things you need to how to install a subwoofer in a car and each step of installing a subwoofer in your car so that you can have the quality of sound you’ve always wanted.



When it comes to installing a subwoofer in your car, there are some key tools you’re going to need. Here’s a list of what you’ll need:

  • Car Subwoofer
  • Sealer or Adhesive
  • Tape measure
  • Philips head screwdriver
  • Plywood or MDF board
  • Drill
  • 1/2″ drill bit
  • 9/32″ drill bit
  • Punchdown tool
  • Cable ripper
  • Wire stripper
  • Crimper
  • Solder iron
  • Solder


Before you start, you’ll need a few things: the subwoofer, the mounting bracket, the amplifier, and the wiring. Once you have all that, here are the steps you’ll need to take:

  1.  Open up the trunk and take out the spare tire. The result will be that you have more space to work in.
  2. Make sure you have the right tools. You’ll need a screwdriver, wire cutter/stripper, and electrical tape.
  3. Remove the old stereo or speakers from your car. The mounting brackets typically need to be unscrewed to accomplish this.
  4. Locate where you want to put the subwoofer. You’ll need to make sure it’s in a spot where it will have plenty of ventilation.
  5. The subwoofer should then be taken out of its box after marking the location with a pencil.
  6. Drill holes into the body of the car with a power drill, using the mounting bracket as a guide. Make sure to use masking tape to avoid scratching the paint job.
  7. Apply pressure to the subwoofer with one hand while screwing in the screws with the other hand. Don’t over-tighten them, or you might damage the subwoofer.
  8. Connect the amplifier to your car’s battery using red and black wires. To do this, remove the cover from your car’s fuse box and find an empty spot for your amp (usually near the back). Attach each wire to a fuse holder and replace the cover.
  9. Connect your subwoofer to your amplifier using a speaker wire. This can be done by following either the doors or firewall of your car (use masking tape again to avoid scratches).
  10. Secure any excess wire with cable ties or electrical tape, so it doesn’t get in your way while driving.

Since you now know the steps needed to install a subwoofer in your car, you will want to prepare your car for installation. So you’ve decided to install a subwoofer in your car. That’s great! However, there are a few actions you must take to get your car ready for installation.

The first step is to take out your car seats. This will give you more space to work and make it easier to access the area where you’re going to install the subwoofer. Next, you need to remove the door panels from your car. By doing this, you’ll have simpler access to the speaker connections and wiring, which will facilitate the subwoofer installation.

Related Guide: How to Connect Subwoofer to Car Speakers

Finally, you need to remove the dashboard from your car. You’ll have access to the amplifier and can install the subwoofer more easily as a result.

Related Posts


  • Determine the accounting location of the subwoofer.

Finding a mounting place is the next step after deciding whether a subwoofer is the correct choice for you. Your car’s brand and model, as well as your own preferences, will determine this. Some people prefer to have the subwoofer in the trunk, while others like to have it in the cabin. Both places have advantages and disadvantages. The trunk offers more bass response, but the sound can be muddier. The cabin offers cleaner sound, but it can be harder to get a good bass response.

The subwoofer’s placement is ultimately up to you. Just make sure that before making a choice, you take all the factors into account.

  • Wiring the subwoofer.

Now it’s time to wire up your subwoofer. This is a lot easier than it sounds, and you only need two things: speaker wire and wire connectors.

It is necessary to first connect the positive terminal of the subwoofer to the positive terminal of the amplifier. The negative terminals of the amplifier and the subwoofer must then be connected.

Next, the ground wire must also be connected to both the subwoofer and the amplifier. The ground wire helps reduce interference, so it’s important to make sure that it’s securely connected.

Finally, you’ll need to connect the power wire to the amplifier. Use a cable that can handle the amount of power your amplifier will be using, and make sure it is thick enough to do so. The power cable is typically red; however, it could also be black. Please refer to your manual if you’re unsure which one it is. Once you’ve plugged in the power wire, screw the terminal down tight, so it doesn’t come loose. The power wire provides power to the amplifier, so it’s important to make sure that it’s connected correctly. 

  • Connecting the amplifier to the subwoofer
    how to connect subwoofer to amplifier in car

    Now that the subwoofer is mounted and the amplifier is hooked up to power, it’s time to connect the two.

    The power cable should first be connected from the back of the amplifier to the battery’s positive terminal. After that, join the negative terminal of the battery to the ground wire of the amplifier using a piece of speaker wire. The circuit will be complete, and the amplifier will receive power if you do this.

    Next, connect the speaker wire from the amplifier’s “speaker output” terminals to the terminals on the subwoofer. Check to verify that the negative and the positive terminals on both the subwoofer and amplifier are the same.

    After connecting everything, start your car and increase the volume on the stereo. Your subwoofer ought to be audible at this point!

    Testing and adjusting the settings of the sound system

    After the subwoofer is physically installed and all wiring is connected, it’s time to test the system. Start by turning on the receiver and setting the volume to a low level. Then turn on the subwoofer. You should hear the bass from the subwoofer if everything is hooked up correctly.

    If you don’t hear anything or the sound is distorted, check all your connections and make sure they’re tight. Also, check if the phase switch is in the correct position. For troubleshooting advice, in case your subwoofer is still not functioning properly, go to the manual. It’s time to make the necessary adjustments after making sure the subwoofer is functioning. Start by setting the receiver to flat or neutral settings. Then gradually raise the volume until it reaches a comfortable level for listening. You can adjust the low-pass filter or increase the gain if you want more bass.


    So there, you have everything you need to know about how to setup subwoofer in your car. It’s not a difficult process, but knowing all the steps and the things you’ll need to have on hand before you start is important. With the right tools and a little know-how, you should be able to get your subwoofer installed in your car in no time. Enjoy the thumping bass!

    Frequently Asked Questions

    Do I need an amplifier to install a subwoofer in my car?

    While an amplifier is not strictly necessary, it is recommended if you want to get the most out of your subwoofer. Without an amplifier, your subwoofer will still work, but it won’t be as loud or produce as much bass as you’ve wanted.

    Where should I place my subwoofer in my car?

    The trunk is the ideal location for your subwoofer. This is because the trunk provides the most space and isolation from the rest of the car, allowing the subwoofer to produce the best sound.

    Can I install a subwoofer myself?

    Yes, you can install a subwoofer yourself, but it is recommended that you have some experience with car audio systems. The best course of action is to have someone else complete the task if you cannot do it

    Similar Posts