How To Install A Subwoofer To A Factory Stereo? – 2024 Guide

Last Updated on February 1, 2024 by John Robinson

The powerful subwoofer is connected to the factory stereo to deliver high-quality sound with deep and cool bass. Its bass system is made up of a speaker driver, an amplifier, and a converted enclosure. Poor noise levels can completely ruin your mood, making you angry for no reason. Music is a great art form and you would not want to ruin your music knowledge due to the lack of a proper sound system, and that is why you should know how to install a powerful subwoofer on an industrial stereo. The subwoofer enhances the sound quality and improves the performance of the speaker at high frequencies.

Powerful subwoofers include an integrated amplifier, speaker, and converted enclosure for a powerful subwoofer. The right thing is to lead you to the right path of your perfect sound just like that right adapter and selecting the best combination of amplifiers, and a subwoofer you can get an industrial stereo that sounds great in the afternoon using basic skills of wiring. After you have connected it to the amplifier, complete the wiring, and you should be on your way to enjoying the quality of clean sound over your car stereo speakers. This combination leads your sound to the clean bass you want for your music.

In this guide, our thoughts explained more about installing a powerful subwoofer on the home stereo. Additional subwoofer installation is not very difficult, and while you may have to pay for a professional car stereo or car expert electrician to do it for you, with a little effort and this article as your guide, you can save your time and money after following these steps, and do the work yourself. Of course, it is possible to install a sub-woofer, or other speakers for that matter, without the amp; However, doing so may result in lower quality noise. This advantage is a worthy package as it will not only save your time and money but also make sure you get a compatible amplifier for your new sub-woofer. In this article, we will go into the details of how to install a subwoofer to a factory stereo. Let’s have a complete framework outline.

Installation Guide for Subwoofer to a Factory Stereo

In this guideline session  we are going to describe to you the easiest procedure to rectify the solution of the subwoofer to a factory stereo the following guide will access your stereo in a proper manner so that you can enjoy your music the sound you want by adding the beast at your car the manner are as follows:

Tools Necessities

Adjust Your Subwoofer in a Suitable Cabin

The built-in amplifier for your sub produces a lot of heat, you will need to put it in the part of your car with the right air and easy to reach.

Cut Off the Battery Source

To avoid any danger, it is important to disconnect the negative battery terminal. This act will save you, and your car from any dangerous incidents.

Wiring of Power Cable From Subwoofer To Amp

Firewall patterns are mostly used in the nowadays cars for properly running the wire to connect the Stereo Subwoofer. Certainly, it demarcates the main cabin from the engine compartment. When you get inside the cabin, slip the power cable under your vehicle carpet or trim panels. Try this, until you get to where your powered subwoofer is located  – only slip along one side of the carpet. For this access you have to, pop open your hood and locates the firewall. This pattern looks like a windshield and looks like a metal wall.

RCA Cables Inspection

The connection of RCA known as pre-outs provides a pure line-level signal for new amps added to the system. However, line converters commonly known as “LOCs” solve this problem, plugging in the speaker level leads behind stock radios and converting the signal to low. At that point, the RCAs carry the signal to the amplifier of the subwoofer. This is to reduce any possible electrical noise. If line output switches are not available, tapping the speaker cord behind an industrial stereo, or rear speakers can be performed. This is a signal generator in an integrated amplifier for a powerful subwoofer.

Connection Reinforcement

The next step is to strengthen the connection by connecting direct wires from the subwoofer to the left speaker (+). Connect the negative wires the source of which is a small box on the left speaker with the mark (-).

Power Rating

Power ratings on an amplifier or subwoofer depend on several factors. If the amplifier is rated at “1000 watts,” it does not usually mean that it is full-time power, and it should not suggest that the amp can run that high for more than a few minutes continuously. The amplifier power output is a speaker restraint function, not a subwoofer power grip. For example, if you buy a 1000-watt subwoofer and run it with a 100-watt amplifier, the amp will not produce surprisingly 1000 watts. Using a mono amplifier rated at 200 watts at 4 Ohms usually produces an output of 400 watts or more driven at 2 Ohms.

Ground Wire

Connect the bottom strap to the car chassis using a bolt to fasten it. You should check that the bolt is used to protect the device properly. The bottom strap should be attached to the bare metal part of your car for proper operation. If there is paint or plastic, remove it and securely attach the bottom wire. The ground wire terminal must be connected to the car’s bare metal. This is an important step in installing a powerful subwoofer in an industrial stereo.

Testing of Subwoofer Audio

Start the car to make sure the factory stereo and subwoofer open with the car. Play the song to make sure the installed subscribers are active. For the best quality of sound, you must check it by yourself and customize it according to your preferences. For this your stereo must be accompanied by a powerful additional subwoofer before buying, we recommend that you check your car stereo and deliver you the best quality sound. 

Safety Precautions

To ensure that you successfully install your powerful subwoofer without causing any damage or accidents, there are some safety precautions you need to keep in mind.

  • Avoid contact with moisture: You will be working with a lot of electricity during the installation process, keeping all types of fluids out will prevent you from moving slowly in your car.
  • Be gentle with ropes: Use soft curves to prevent aging and tearing of your cords and cables.
  • Use a capacitor: A capacitor, you will need to prevent voltage drop when the deep bass hits. The most important factor which to be in consideration is that the capacitor is as close to the amp as possible and uses the same ground as the amp used.
  • Lower the profit: During the test, lower the profit and play your music before increasing it to the desired volume. It prevents your powerful subwoofer from damaging it immediately.


Connection and finding the best and the right subwoofer is hard enough, which is why we easily make the process of installation with this guide. And without installation, you also have your job assigned to getting the same amplifier. Remember, if the steps are not clear and you are not confident in your skills, spending less money and finding a professional will do it for you. If you are unsure how to install your subwoofer, do not be ashamed to call an expert and pay attention as the technician follows the steps mentioned above. And to do so, you need to know how to install a subwoofer in an industrial stereo. I hope this post has helped teach the basics of the process.

John Robinson
John Robinson

Howdy! I’m John Robinson from Levittown, New York. I am a mechanical engineer for 15 years and already had an established car repair company. I developed a personal relationship with cars since I was a kid. I always love the sounds and smell emitted by a car or truck and even at construction machinery. Since then I have been married but my love for cars only grew.