Installing an aftermarket car audio system can be intimidating for some, especially if it involves wiring. Fortunately, Metra Electronics has made it easier for car enthusiasts to install their own car audio system by introducing the Metra Loc wiring diagram.
The Metra Loc is a line output converter that allows you to connect an aftermarket amplifier to your car’s factory sound system. It is a must-have for those who want to upgrade their car audio experience without compromising the factory-installed head unit.
What Is Metra Loc?
The Metra Loc, short for Metra Electronics Line Output Converter, is a device that converts the speaker-level signal from your car’s factory sound system to a preamp-level signal that can be used by an aftermarket amplifier. The device also comes with a remote turn-on lead that can be used to turn on the amplifier when the car’s ignition is on.
The Metra Loc is a compact device that can be easily mounted in your car’s trunk or under the dash. It is compatible with almost all factory-installed sound systems, including those with high-level and low-level input signals.
How To Install Metra Loc?
Installing Metra Loc on your car is easier than you might think. Here are the step-by-step instructions:
Step 1: Disconnect the Car Battery
Before starting any wiring project on your car, it is essential to disconnect the battery. This will prevent any electrical shorts or shocks while working on the sound system.
Step 2: Locate the Factory Speaker Wires
The next step is to locate the speaker wires that run from your car’s sound system to the speakers. These wires are usually located behind the radio or in the doors of your car. You may need to consult the car’s manual to find the location of the wires.
Step 3: Connect the Metra Loc
Connect the wires from the Metra Loc to the factory speaker wires. The Metra Loc comes with color-coded wires to make the connection easier. Connect the Metra Loc wires according to the wire color codes. Once connected, tuck the wires neatly to avoid any tangling or accidental cuts.
Step 4: Mount the Metra Loc
Mount the Metra Loc in a convenient location in your car’s trunk or under the dash. Use screws or double-sided tape to secure the device in place.
Step 5: Connect the Remote Turn-On Lead
The Metra Loc comes with a remote turn-on lead that can be used to turn on the amplifier when the car’s ignition is turned on. Connect the remote turn-on lead to the amplifier’s remote input.
Step 6: Connect the Amplifier
Finally, connect the amplifier to the Metra Loc using RCA cables. Connect one end of the cables to the Metra Loc’s preamp outputs and the other end to the amplifier’s input.
Frequently Asked Questions
Q: Do I need Metra Loc if I have a high-level input amplifier?
A: No, a high-level input amplifier can accept the speaker-level signal from the car’s sound system without the need for a line output converter.
Q: Can I install the Metra Loc myself?
A: Yes, the Metra Loc is designed to be easy to install, and most car enthusiasts can install it themselves. However, if you are not comfortable with wiring, it is always better to seek professional help.
Q: Can I use the Metra Loc with any factory-installed sound system?
A: Yes, Metra Loc is compatible with almost all factory-installed sound systems, including those with high-level and low-level input signals.
| Wire Color | Function |
|---|---|
| White | Left Front Speaker Positive |
| White with Black Stripe | Left Front Speaker Negative |
| Gray | Right Front Speaker Positive |
| Gray with Black Stripe | Right Front Speaker Negative |
| Green | Left Rear Speaker Positive |
| Green with Black Stripe | Left Rear Speaker Negative |
| Purple | Right Rear Speaker Positive |
| Purple with Black Stripe | Right Rear Speaker Negative |
In conclusion, the Metra Loc wiring diagram is an essential tool for those who want to upgrade their car audio system without compromising the factory-installed head unit. It is easy to install and compatible with almost all car sound systems. Follow the step-by-step instructions above, and you will enjoy high-quality sound in your car in no time.
