If you’re looking to install an aftermarket radio in your 2009 Ford F150, you’ll need to know the wiring harness diagram for your truck. In this article, we’ll explain what the different wires do and how to install your new radio.
What You’ll Need
Before we get into the wiring diagram, let’s talk about what you’ll need for the installation. Here’s a list:
| Item | Link |
|---|---|
| Aftermarket radio | Link to Example |
| Wiring harness adapter | Link to Example |
| Wire cutters/strippers | Link to Example |
| Electrical tape | Link to Example |
Make sure you have all of these items before you start the installation.
Wiring Harness Diagram
The wiring harness in your 2009 Ford F150 is responsible for connecting the radio to the speakers and power source. Here’s a diagram of what each wire does:
| Wire Color | Function |
|---|---|
| Yellow/Red | Battery/Constant 12v |
| Black | Ground |
| White/Red | Accessory/Acc 12v |
| Blue/White | Amp Turn-On |
| Green/Orange | Left Rear Speaker Positive |
| Green/Yellow | Left Rear Speaker Negative |
| White/Light Green | Left Front Speaker Positive |
| White/Orange | Left Front Speaker Negative |
| Orange/Light Green | Right Front Speaker Positive |
| Orange/Black | Right Front Speaker Negative |
| Purple/Light Green | Right Rear Speaker Positive |
| Purple/Yellow | Right Rear Speaker Negative |
Understanding the Wires
Now that you know what each wire does, let’s break it down a bit further.
Battery/Constant 12v
The yellow/red wire is responsible for providing constant power to your radio. This wire should be connected to the positive terminal of your battery or to an accessory fuse that provides constant power.
Ground
The black wire is the ground wire and should be connected to a metal surface that is grounded to the chassis of your truck.
Accessory/Acc 12v
The white/red wire is responsible for providing power to your radio when the key is turned to the accessory position. This wire should be connected to an accessory fuse that provides power when the key is turned to the accessory position.
Amp Turn-On
The blue/white wire is responsible for turning on the amplifier in your aftermarket radio. If your radio does not have an amplifier, you can leave this wire disconnected.
Speaker Wires
The speaker wires are responsible for connecting your radio to the speakers in your truck. The positive wires are colored green/orange (left rear), white/light green (left front), orange/light green (right front), and purple/light green (right rear). The negative wires are colored green/yellow (left rear), white/orange (left front), orange/black (right front), and purple/yellow (right rear).
Installation Steps
Now that you know the wiring diagram, here are the steps to install your new radio:
Step 1: Disconnect the Battery
Before you start the installation, disconnect the negative terminal of your battery to prevent any electrical shorts.
Step 2: Remove the Factory Radio
Remove the factory radio from your truck by using a radio removal tool or a flathead screwdriver. This will allow you to access the wiring harness.
Step 3: Connect the Wiring Harness Adapter
Connect the wiring harness adapter to the factory wiring harness in your truck. Make sure you match the colors of the wires to the diagram above.
Step 4: Connect the Aftermarket Radio
Connect the wiring harness adapter to your aftermarket radio. Make sure you match the colors of the wires to the diagram above.
Step 5: Test the Radio
Before you finish the installation, test the radio to make sure it is working properly. If it is, continue with the installation. If not, double-check your connections and the wiring diagram.
Step 6: Reinstall the Factory Radio
Once you’ve tested your new radio, reinstall the factory radio or use a radio mounting kit to install your aftermarket radio.
FAQ
1. Can I install my new radio without a wiring harness adapter?
No, it is not recommended to install an aftermarket radio without a wiring harness adapter. The adapter will ensure that you have the correct connections and prevent any electrical shorts.
2. Can I use the factory wiring harness to install my new radio?
You can use the factory wiring harness to install your new radio, but it may require splicing and could be more difficult to install. It is recommended to use a wiring harness adapter for an easier installation.
3. What if my new radio doesn’t have an amp turn-on wire?
If your new radio does not have an amp turn-on wire, you can leave the blue/white wire disconnected. If you have an amplifier in your truck, you may need to connect the turn-on wire to the amplifier instead.
4. What if my truck doesn’t have a yellow/red wire?
If your truck does not have a yellow/red wire, you can connect the radio’s battery wire (usually red) to a fuse that provides constant power.
5. What if my truck doesn’t have a white/red wire?
If your truck does not have a white/red wire, you can connect the radio’s accessory wire (usually yellow) to a fuse that provides power when the key is turned to the accessory position.
With this guide, you should be able to install your new radio in your 2009 Ford F150 with ease. Make sure you follow the wiring diagram and take your time with the installation to ensure that everything is connected properly.
