2 Channel Line Output Converter Wiring Diagram

Hello there, dear readers! Today, we will delve into the world of 2 channel line output converter wiring diagrams. In this article, we will provide you with a detailed guide on how to properly wire a 2 channel line output converter. So, let’s get started!

1. Understanding Line Output Converters

Before we jump into the wiring process, it is crucial to have a good understanding of what a line output converter (LOC) is and how it functions. A line output converter is a device that allows you to connect an aftermarket amplifier to your factory stereo system. It converts the speaker-level signals from your car’s stereo into a preamp-level signal that your amplifier can process.

2. Gather the Necessary Tools

Before you begin the wiring process, make sure you have all the necessary tools at hand. These tools include wire strippers, electrical tape, crimp connectors, a soldering iron (optional), and a wiring diagram specific to your vehicle and LOC model.

3. Identify the Speaker Wires

The next step is to identify the speaker wires in your vehicle. You can consult your vehicle’s manual or use a multimeter to find the positive and negative speaker wires for each channel. It is important to connect the LOC to the correct wires to ensure proper audio output.

4. Connect the Speaker Wires to the LOC

Now that you have identified the speaker wires, it’s time to connect them to the LOC. Strip a small portion of the insulation from each wire and connect them to the corresponding input channels on the LOC. Ensure a secure connection by using crimp connectors or soldering the wires together.

5. Connect the RCA Cables

Once the speaker wires are connected to the LOC, it’s time to connect the RCA cables. These cables will carry the preamp-level signal from the LOC to your aftermarket amplifier. Connect the RCA cables to the output channels on the LOC and route them to the amplifier location.

6. Power and Ground Connections

Most LOCs require a power and ground connection to function properly. Consult the wiring diagram for your specific LOC to identify the power and ground wires. Connect these wires to a suitable power source, such as the car’s fuse box, and ground them securely to the vehicle’s chassis.

7. Adjust the Gain Settings

After completing the wiring process, it is important to adjust the gain settings on your amplifier. The gain controls the input sensitivity of the amplifier and ensures the proper output levels. Consult your amplifier’s manual for instructions on how to set the gain correctly.

8. Testing and Troubleshooting

Before finalizing the installation, it is crucial to test the audio output and troubleshoot any issues that may arise. Double-check all connections, ensure the speaker wires are properly insulated, and verify that the audio is clear and distortion-free.

9. The Pros and Cons of Using a 2 Channel Line Output Converter

Pros Cons
Allows integration of aftermarket amplifiers with factory stereo systems May introduce signal noise or interference
Preserves the functionality of factory controls and features Requires proper wiring and installation for optimal performance
Provides a clean and balanced audio signal Compatibility issues with certain vehicle models

10. Alternative Wiring Options

While a 2 channel line output converter is a popular choice for integrating aftermarket amplifiers, there are alternative wiring options available. These include using a 4 channel LOC for more advanced setups or utilizing a digital signal processor (DSP) to achieve superior audio control and customization.


In conclusion, understanding how to wire a 2 channel line output converter is essential for integrating aftermarket amplifiers into your vehicle’s factory stereo system. By following the wiring diagram and using the proper tools, you can achieve optimal audio performance and enjoy an enhanced listening experience. Remember to always double-check your connections and troubleshoot any issues that may arise. Happy wiring!

Frequently Asked Questions (FAQ)

Q: Can I install a line output converter myself?

A: Yes, you can install a line output converter yourself if you have basic knowledge of car audio systems and the necessary tools. However, if you are unsure or uncomfortable with the process, it is recommended to seek professional assistance.

Q: Will a line output converter work with my factory stereo?

A: In most cases, a line output converter is compatible with factory stereos. However, it is recommended to check the specifications of your specific vehicle and LOC model to ensure compatibility.

Q: Can a line output converter improve the sound quality of my car’s audio system?

A: Yes, a line output converter can improve the sound quality of your car’s audio system by allowing you to connect aftermarket amplifiers and speakers. This enables more power and control over the audio output, resulting in better overall sound performance.