What is a Metra Line Output Converter Wiring Diagram and How is it Used?
A Metra Line Output Converter Wiring Diagram is a visual guide that illustrates the connections needed to integrate an aftermarket audio device, such as an amplifier or subwoofer, with a factory-installed car stereo that lacks dedicated RCA outputs. Factory stereos typically output audio signals through speaker wires. A line output converter takes these speaker-level signals and transforms them into the low-level RCA signals that most aftermarket amplifiers require. The diagram is essential because it shows precisely which wires from the factory stereo connect to which terminals on the Metra converter.
The process of using the Metra Line Output Converter Wiring Diagram involves identifying specific wires within your vehicle's wiring harness. These wires are generally categorized as follows:
- Power Wires: These supply the converter with the necessary electricity to function.
- Ground Wires: A secure ground connection is vital for proper operation and to prevent noise.
- Speaker Wires: These carry the audio signal from the factory stereo. The diagram will differentiate between front and rear, or left and right speaker outputs.
- Remote Turn-On Wire: This wire signals the amplifier to turn on when the factory stereo is powered up, preventing a "pop" sound.
The Metra Line Output Converter Wiring Diagram will clearly label each of these wire functions and indicate where they should be connected on the converter unit. For example, a typical diagram might show:
| Factory Wire Color | Function | Metra Converter Terminal |
| Blue | Remote Turn-On | Remote In |
| Red | Constant Power | +12V |
| Black | Ground | GND |
| Gray (Left Front Speaker +) | Speaker Level Input | Left + |
Following the Metra Line Output Converter Wiring Diagram precisely is of paramount importance to ensure the correct functionality of your audio system and prevent damage to your vehicle's electronics or the aftermarket equipment. Misinterpreting or incorrectly connecting wires can lead to no sound, distorted audio, or even blown fuses.
Once you have the Metra Line Output Converter Wiring Diagram, you can confidently proceed with your installation. This diagram is your key to a successful and hassle-free upgrade, ensuring your new amplifier receives the clean, low-level signal it needs to deliver superior sound. Always refer to the specific diagram that came with your Metra line output converter model, as wiring colors and configurations can vary slightly between different vehicles and converter models.
Before you begin your installation, please carefully review the specific Metra Line Output Converter Wiring Diagram provided in your product's manual or on the Metra website. This detailed guide is your most reliable resource for a correct and safe connection.