Subaru WRX is an automobile that has gained popularity among car enthusiasts over time. Among its key features is the radio system, which is an essential component of a car’s entertainment system. One of the challenges new Subaru owners face is wiring the radio system correctly. This article will provide a detailed guide on 2018 Subaru WRX radio wiring diagram.
Overview of Subaru WRX Radio System
The 2018 Subaru WRX radio system is designed to provide entertainment to the driver and passengers while on the road. It features a head unit that’s installed within the console of the car. The radio system is fitted with a range of features such as FM/AM radio, CD player, Bluetooth connectivity, and USB port.
However, installing or replacing the radio unit may be challenging if you don’t have a clear understanding of the wiring diagram. This guide will provide you with comprehensive information on how to go about this task.
How to Install a New Radio System on Subaru WRX
The following are steps to follow when installing a new radio unit on your 2018 Subaru WRX:
- Disconnect the negative battery cable – This is a crucial step that’s often overlooked. Disconnecting the battery will prevent short-circuiting and any possible damage that may occur during installation.
- Remove the old unit – To remove the old unit, you’ll need to use a panel removal tool. Insert the tool into the slot at the bottom of the panel and pry it out gradually. Repeat the same process for other clips around the unit until it comes out.
- Disconnect the wiring harness – Once you have removed the old unit, disconnect the wiring harness that’s connected to the back of the unit. Ensure that you mark each wire using masking tape to avoid confusion when installing the new unit.
- Connect the new unit – Connect the new unit by attaching the wiring harness that was disconnected from the old unit earlier. Use the wiring diagram to ensure that you connect the right wires.
- Test the new unit – Before securing the new unit in place, test it to ensure that it’s functioning correctly.
- Secure the new unit – Once you’re sure that the new unit is working correctly, secure it in place by snapping it into the panel.
2018 Subaru WRX Radio Wiring Diagram
The 2018 Subaru WRX radio wiring diagram consists of the following elements:
| Wire Color | Function |
|---|---|
| Red | 12V Accessory |
| Yellow | 12V Constant |
| Blue | Power Antenna |
| Black | Ground |
| Gray | Right Front Speaker Positive |
| Gray/Black | Right Front Speaker Negative |
| White | Left Front Speaker Positive |
| White/Black | Left Front Speaker Negative |
| Purple | Right Rear Speaker Positive |
| Purple/Black | Right Rear Speaker Negative |
| Green | Left Rear Speaker Positive |
| Green/Black | Left Rear Speaker Negative |
FAQ
1. Can I install an aftermarket radio system in my 2018 Subaru WRX?
Yes, you can install an aftermarket radio system in your 2018 Subaru WRX. However, it’s crucial to ensure that you follow the right wiring diagram to avoid any damage to the electrical components of your car.
2. Do I need a professional to install a new radio system in my 2018 Subaru WRX?
No, you can install a new radio system in your 2018 Subaru WRX on your own. However, if you’re not confident about your skills, you can seek the help of a professional.
3. What’s the importance of the negative battery cable during installation?
The negative battery cable should be disconnected to prevent short-circuiting and damage to your car’s electrical system during installation.
4. What’s the function of the power antenna wire?
The power antenna wire is used to activate the car’s power antenna when the radio is turned on.
5. What’s the difference between the positive and negative speaker wires?
The positive speaker wire carries the audio signal, while the negative speaker wire is used to complete the circuit.
In conclusion, installing a new radio system in your 2018 Subaru WRX can be challenging, but with this guide, you’ll be able to do it on your own. Ensure that you follow the wiring diagram and take necessary precautions to prevent any damage to your car’s electrical components. If in doubt, seek the help of a professional.
