Car Sub Wiring Diagram: A Comprehensive Guide

If you’re a car enthusiast, you know the importance of having a good sound system. A subwoofer is an essential component of a car stereo system. However, installing a subwoofer in a car can be a daunting task, especially if you’re not familiar with the wiring diagram.

What is a Car Sub Wiring Diagram?

A car sub wiring diagram is a schematic that shows how to connect the various components of a car audio system. It includes details about the wires, connectors, and other components needed to properly install a subwoofer in a car.

A wiring diagram is essential because it ensures that all the components are connected correctly, and it helps to prevent damage or malfunction to the audio system. It can also make troubleshooting easier if something goes wrong with the system.

Components of a Car Sub Wiring Diagram

A car sub wiring diagram typically includes the following components:

  1. Power wire
  2. Ground wire
  3. Remote turn-on wire
  4. Speaker wire
  5. Line output converter (if needed)
  6. Fuse holder (if needed)

Power Wire

The power wire is the main wire that supplies power to the subwoofer amplifier. It’s typically red and runs from the car battery to the amplifier.

Ground Wire

The ground wire is the wire that provides a path for the current to return to the battery. It’s typically black and runs from the amplifier to a metal part of the car’s frame.

Remote Turn-On Wire

The remote turn-on wire is the wire that turns on the subwoofer amplifier when the car’s stereo is turned on. It’s typically blue and connects to the “remote” or “amp turn-on” wire of the car stereo.

Speaker Wire

The speaker wire is the wire that connects the subwoofer to the amplifier. It’s typically a twisted pair of wires that are labeled positive (+) and negative (-).

Line Output Converter (LOC)

A line output converter (LOC) is used when the car stereo doesn’t have RCA outputs. It converts the speaker wire signal into an RCA signal that can be used by the amplifier.

Fuse Holder

A fuse holder is used to protect the car’s electrical system from damage caused by a short circuit. It’s typically placed near the battery and includes a fuse that will blow if there’s a short circuit.

Step-by-Step Guide to Wiring a Car Subwoofer

Follow these steps to wire a subwoofer in your car:

  1. Disconnect the negative terminal of the car battery.
  2. Choose a suitable location for the subwoofer and amplifier.
  3. Connect the power wire to the positive terminal of the car battery.
  4. Connect the ground wire to a metal part of the car’s frame.
  5. Connect the remote turn-on wire to the “remote” or “amp turn-on” wire of the car stereo.
  6. Connect the speaker wire to the amplifier and subwoofer.
  7. Install the line output converter (if needed).
  8. Install the fuse holder (if needed).
  9. Reconnect the negative terminal of the car battery.
  10. Test the subwoofer and adjust the settings as needed.

FAQs about Car Sub Wiring Diagrams

Q: How can I tell which wire is the power wire?

A: The power wire is typically red and has an inline fuse. It’s also the thickest wire in the wiring harness.

Q: Can I use the factory wiring to connect a subwoofer?

A: It’s not recommended, as the factory wiring may not be able to handle the power requirements of a subwoofer. It’s best to use a separate wiring kit designed for subwoofers.

Q: How do I know if I need a line output converter?

A: If your car stereo doesn’t have RCA outputs, you’ll need a line output converter to connect the subwoofer to the amplifier.

Q: What size fuse should I use for the amplifier?

A: The size of the fuse depends on the power requirements of the amplifier. Check the amplifier’s manual or specifications to determine the appropriate fuse size.

Q: How do I adjust the settings on the amplifier?

A: The amplifier will have various controls, such as gain, crossover, and bass boost. Adjust these settings based on the type of music you listen to and your personal preferences.

Conclusion

Wiring a subwoofer in a car can be a challenging task, but with a car sub wiring diagram, it’s much easier. Make sure to follow the steps carefully and use the appropriate wiring kit for your subwoofer. With a little patience and some basic tools, you can enjoy a great-sounding audio system in your car.