Adding A Subwoofer To Factory Stereo

Looking to enhance your car’s audio system? Adding a subwoofer to your factory stereo can improve your car’s sound quality and provide a richer bass experience. Here’s how to do it.

Adding A Subwoofer To Factory Stereo

Are you tired of the lackluster bass and muddy audio coming from your car’s factory stereo system? It’s time to upgrade with a subwoofer. A subwoofer can enhance your audio experience and provide the extra kick you’ve been missing. Don’t worry, you don’t have to be a sound expert to add one to your car’s existing stereo system. With a few simple steps, you can upgrade your sound system and transform your driving experience.

Adding a subwoofer to your factory stereo system may seem daunting at first, but it’s a fairly straightforward process. You’ll need to select the right subwoofer for your car, prepare the necessary materials and tools, and follow a step-by-step guide to complete the installation. And the best part? You’ll be able to show off your new sound system to all your friends on your next road trip.

So buckle up and get ready to take your audio experience to the next level. In this article, we’ll provide you with a comprehensive guide on how to add a subwoofer to your factory stereo system. We’ll cover everything from choosing the right subwoofer to installing it in your car. Get ready to feel the bass like never before!

Benefits of Adding a Subwoofer to Your Car 

Adding a subwoofer to your car’s sound system can greatly enhance your overall audio experience. While some may argue that it’s just an unnecessary expense, the benefits of adding a subwoofer far outweigh the costs. Here are just a few reasons why you should consider adding a subwoofer to your car:

Improved Sound Quality:

One of the most obvious benefits of adding a subwoofer to your car is the improved sound quality. A subwoofer allows you to hear the lower frequencies that your factory speakers may not be able to produce, resulting in a more complete and dynamic sound.

Enhanced Bass Response:

A subwoofer can significantly improve the bass response in your car’s sound system. With a subwoofer, you can feel the bass in your chest rather than just hear it, creating a more immersive audio experience.

Better Overall Audio Balance:

A subwoofer can also help balance out the sound in your car. By providing more bass and low-frequency sound, a subwoofer can help prevent distortion and make your music sound more natural and balanced.

Customizable Sound:

Another benefit of adding a subwoofer is the ability to customize your sound. With a subwoofer, you can adjust the levels of bass and low-frequency sound to your liking, allowing you to create a sound that’s unique to your preferences.

Types of Subwoofers

When it comes to choosing a subwoofer for your car, there are several types available on the market. Each type has its own unique characteristics and specifications, making it important to choose the right type for your specific needs. Here are the most common types of subwoofers available:

Component Subwoofers:

Exceptional performance with Component Subwoofers: Explore the world of powerful bass and precision sound reproduction with our top-tier component subwoofers. Unleash deep, impactful low frequencies for an immersive audio experience in your car audio system.

These subwoofers are designed to be mounted in a subwoofer box and are ideal for those who want maximum flexibility and customization. They come in a range of sizes and power ratings, making it easy to find one that fits your car and your desired audio experience.

Enclosed Subwoofers: 

Elevate your audio experience with Enclosed Subwoofers: Discover the perfect blend of power and convenience with our enclosed subwoofers. Immerse yourself in rich, deep bass without the hassle of complex installations. Upgrade your car audio effortlessly for an enhanced driving soundtrack.

These subwoofers come pre-mounted in a sealed or ported box, making them easy to install and use. They’re also more compact than component subwoofers, making them a great option for those with limited space.

Powered Subwoofers:

Unleash powerful bass with Powered Subwoofers: Experience convenience and performance in one with our powered subwoofers. Amplify your car audio system effortlessly, as these subwoofers come equipped with built-in amplifiers. Upgrade your sound with ease for a thrilling in-car audio experience.

These subwoofers have a built-in amplifier, which means they don’t require an external amplifier or additional wiring. They’re a great option for those who want a simple and hassle-free installation process.

Vehicle-Specific Subwoofers:

These subwoofers are designed to fit seamlessly into specific car models, making them a great option for those who want a custom, factory-like installation. They’re often more expensive than other subwoofers, but they can provide a great audio experience.

Free-air Subwoofers:

Experience superior bass with Free-air Subwoofers: Discover the freedom of clear, impactful low frequencies without the need for a traditional enclosure. Our free-air subwoofers deliver impressive audio performance, blending seamlessly into your car audio setup for an enhanced and space-efficient listening experience.

These subwoofers are designed to be mounted on a baffle board or rear deck rather than a subwoofer box. They’re a great option for those who want a low-profile installation, but they can be more difficult to install than other types.

Choosing the Right Subwoofer for Your Car

Choosing the right subwoofer for your car can make a significant difference in the quality of your car’s sound system. With so many different types of subwoofers available on the market, it can be overwhelming to decide which one is the best fit for you. Here are some important factors to consider when choosing the right subwoofer for your car:

Power Handling: 

The power handling of a subwoofer refers to how much power it can handle before it starts to distort. If you have a high-powered sound system, you’ll want a subwoofer with a high power handling capacity.


The sensitivity of a subwoofer refers to how much sound it produces with a given amount of power. A higher sensitivity rating means that the subwoofer can produce more sound with less power.


Subwoofers come in various sizes, and the size you choose will depend on the amount of space available in your car. If you have limited space, a smaller subwoofer might be a better fit.


As mentioned earlier, there are various types of subwoofers, including component, enclosed, powered, vehicle-specific, and free-air. Each type has its unique characteristics, so choose one that best fits your needs.

Enclosure Type:

The type of enclosure you choose can also impact the sound quality of your subwoofer. Sealed enclosures are great for producing accurate and tight bass, while ported enclosures can produce more volume.


Subwoofers come in various price ranges, so it’s important to set a budget before making a purchase. Consider how much you’re willing to spend and choose a subwoofer that fits within your budget.

Additionally, it’s important to keep in mind the music you listen to and your personal preferences. If you listen to bass-heavy music like hip-hop, you may want a subwoofer that can handle lower frequencies with more power. On the other hand, if you listen to rock or jazz, you may want a subwoofer that can produce a more balanced sound across the entire frequency range.

It’s also important to consider the overall sound system of your car when choosing a subwoofer. If you have a high-quality sound system, you may want to invest in a high-end subwoofer that can handle the power and produce the best possible sound. On the other hand, if you have a basic sound system, a mid-range subwoofer may be a better fit.

Amplifiers: Do You Need One?

When you’re considering adding a subwoofer to your car, one of the questions you may have is whether or not you need an amplifier. The answer is that it depends on a few different factors.

Type of Subwoofer

Firstly, the type of subwoofer you choose will have an impact on whether or not you need an amplifier. Some subwoofers are powered, meaning that they have an amplifier built-in, while others require an external amplifier to function. If you’ve chosen a powered subwoofer, you won’t need to purchase an additional amplifier.

Power of Subwoofer

Secondly, the amount of power your car stereo puts out will also play a role in determining whether or not you need an amplifier. If your car stereo is already putting out a significant amount of power, it may be able to adequately power a small subwoofer without the need for an amplifier. However, if you’re looking to add a larger subwoofer or if your car stereo doesn’t put out a lot of power, you’ll likely need an amplifier to get the most out of your new subwoofer.

Personal Choice

Finally, your personal preferences and listening habits will also play a role in determining whether or not you need an amplifier. If you’re someone who enjoys listening to music at high volumes, an amplifier can help ensure that your subwoofer can keep up without distortion.

Preparing for Installation

Before you can install a subwoofer in your car, there are a few things you need to do to prepare. By taking the time to properly prepare for installation, you can make the process smoother and ensure that your subwoofer is installed correctly.

Step 1:

The first step in preparing for installation is gathering the necessary tools and equipment. You’ll need things like wire strippers, crimpers, a drill, and a socket set, among other tools. It’s also important to have the correct wiring kit for your specific subwoofer and amplifier, as using the wrong wiring kit can lead to poor sound quality or even damage to your equipment.

Step 2:

Once you have all of the necessary tools and equipment, you’ll need to determine the best location for your subwoofer. This will depend on the size and shape of your car, as well as your personal preferences. Some common locations for subwoofers include the trunk or rear hatch area, under the seats, or even in a custom-built enclosure.

Step 3:

Before you begin the installation process, it’s also important to make sure that you’ve disconnected the battery to prevent any electrical shocks or damage to your car’s electrical system. You should also take the time to read the installation instructions carefully and plan out the installation process before you begin.

By taking the time to properly prepare for installation, you can ensure that your subwoofer is installed correctly and that you’ll be able to enjoy high-quality sound in your car for years to come.

Installing the Subwoofer

Once you’ve gathered all of the necessary tools and equipment and prepared for installation, it’s time to install your subwoofer. While the installation process can vary depending on the specifics of your car and equipment, there are some general steps that you can follow to ensure a successful installation.

Step 1:

The first step in installing your subwoofer is to run the power cable from the battery to the amplifier. This cable should be routed through the firewall and along the floor of the car to the location of the amplifier. To protect the cable where it passes through metal, make sure to use grommets. Additionally, secure the cable with zip ties to prevent it from moving around.

Step 2:

Next, you’ll need to connect the power cable to the amplifier and run the remote turn-on wire from the head unit to the amplifier. The wire tells the amplifier when to turn it on. Connect it to a switched power source, such as the accessory wire on the head unit.

Step 3:

Once the power and turn-on wires are connected, you’ll need to run the RCA cables from the head unit to the amplifier. These cables carry the audio signal from the head unit to the amplifier, and you should route them away from any power cables to prevent interference.

Step 4:

After connecting the RCA cables, you can connect the speaker wires from the amplifier to the subwoofer. Make sure to connect the positive and negative terminals correctly to avoid any damage to your equipment.

Step 5:

It’s time to test the system and make any necessary adjustments. These adjustments include the gain, crossover, and other settings on the amplifier. This will ensure optimal performance.

You can successfully install a subwoofer in your car and enjoy high-quality sound on the road by following these general steps. Additionally, consult the specific installation instructions for your equipment.

Wiring the Subwoofer

Once the subwoofer is installed and the amplifier is properly connected to the head unit, it’s time to wire the subwoofer. This step is essential to ensure that the subwoofer functions properly and produces the desired sound quality.

Expertly wiring the subwoofer for optimal performance: A visual guide showcasing the precise steps and techniques involved in connecting and configuring subwoofer wiring. Ensure a seamless integration into your car audio system, unlocking powerful and precise bass for an immersive listening experience.

Step 1:

The first step in wiring the subwoofer is to connect the subwoofer wires to the amplifier. This involves connecting the positive and negative terminals on the subwoofer to the corresponding terminals on the amplifier. Make sure to tighten the connections securely to avoid any loose connections that could cause distortion or damage to your equipment.

Step 2:

Next, you’ll need to set the crossover and gain settings on the amplifier. The crossover determines the frequency range that the subwoofer will handle, while the gain controls the volume of the subwoofer. Adjusting these settings properly will ensure that the subwoofer produces the desired level of bass and blends seamlessly with the rest of your audio system.

Step 3:

After adjusting the crossover and gain settings, you will need to test the subwoofer and make any necessary adjustments.

Play music with a range of frequencies and listen carefully to ensure the subwoofer produces clean, distortion-free bass. Make any necessary adjustments to the settings until you achieve the desired sound quality.

Step 4:

Finally, you’ll need to ensure that the subwoofer is properly grounded. This involves connecting the ground wire from the amplifier to a clean metal surface in your car, such as a bolt on the frame. A solid ground connection will help to eliminate any unwanted noise or interference in the audio system.

By following these steps and consulting the specific instructions for your equipment, you can successfully wire your subwoofer and enjoy high-quality bass in your car audio system.

Testing Your New System

Congratulations! You’ve made it to the final step of installing your new subwoofer: testing your new system. After all the hard work you’ve put in, it’s time to ensure that everything is working as it should be.

Before you test your subwoofer, make sure that all the connections are secure and there are no loose wires. Once you’ve confirmed this, turn on your car stereo and start playing some music. Start with something light and gradually increase the volume until you can hear the subwoofer’s bass.

As you play different types of music, listen carefully for any distortions or rattling sounds. If you hear any of these, it could mean that your subwoofer is not properly installed or that it’s not compatible with your car stereo system. Don’t panic, though; these issues can usually be fixed by adjusting the settings on your amplifier or by checking the wiring.

If everything sounds good, congratulations! You now have a new subwoofer installed in your car, and you can enjoy your favorite music like never before. Remember to be mindful of your surroundings and keep the volume at a reasonable level, especially when driving through residential areas.


Q: Can I use AUX for the subwoofer?

No, you cannot use the AUX input for a subwoofer. Typically, people use the AUX input on a stereo system to connect external devices like smartphones, tablets, or MP3 players. However, the AUX input is not designed to provide the power and signal required to drive a subwoofer.

Q: Can I add a subwoofer to a factory stereo system?

Yes, you can add a subwoofer to a factory stereo system by using a line output converter or an aftermarket amplifier.

Q: Do I need an amplifier for a subwoofer?

Yes, a subwoofer requires an amplifier to power it and produce the desired sound quality.

Q: How do I connect a subwoofer to a factory stereo system?

You can connect a subwoofer to a factory stereo system by using a line output converter or an aftermarket amplifier and wiring it to the subwoofer.

Q: Do I need to upgrade my car’s electrical system for a subwoofer?

It depends on the power requirements of the subwoofer and amplifier. If they require more power than your car’s electrical system can provide, then you may need to upgrade your car’s electrical system.

Q: Can I install a subwoofer myself?

Yes, you can install a subwoofer yourself if you have some knowledge of car audio systems and are comfortable working with wiring and electrical components. However, if you’re not confident in your abilities, it’s best to seek professional help. This will help you avoid damaging your car or the equipment.

Conclusion: Adding A Subwoofer To Factory Stereo

In conclusion, adding a subwoofer to a factory stereo can greatly enhance the audio quality and overall listening experience in your car. By following the step-by-step guide outlined in this article, you can install a subwoofer and enjoy deep, powerful bass that you may have been missing before.

Whether you’re a music enthusiast or simply looking to upgrade your car’s audio system, a subwoofer can make a big difference. So don’t hesitate to give it a try and take your car audio to the next level.

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