1999 Toyota 4Runner Stereo Wiring Diagram

If you own a 1999 Toyota 4Runner and are looking for a stereo wiring diagram, you are in the right place. This article will provide you with all the information you need to properly install a new stereo system in your vehicle. Whether you are upgrading your old system or simply replacing a faulty unit, this guide will help you get the job done right.

Before You Begin

Before you begin installing your new stereo system, there are a few things you need to keep in mind. First, make sure you have all the necessary tools and materials on hand. You will need wire cutters, wire strippers, crimp connectors, electrical tape, and a wiring diagram for your specific vehicle.

You should also disconnect the negative battery cable before starting any electrical work. This will prevent any accidental short circuits or electrical shocks.

Finally, take the time to carefully read through the instructions that come with your new stereo system. Make sure you understand all the steps involved before you begin.

The Wiring Diagram

Wire Color Function Wire Location
Red Battery Radio harness
Yellow Accessory Radio harness
Black Ground Radio harness
Green Left front speaker (+) Radio harness
Green with black stripe Left front speaker (-) Radio harness
Violet Right front speaker (+) Radio harness
Violet with black stripe Right front speaker (-) Radio harness
Blue Left rear speaker (+) Radio harness
Blue with black stripe Left rear speaker (-) Radio harness
Yellow Right rear speaker (+) Radio harness
Yellow with black stripe Right rear speaker (-) Radio harness

Now that you have the wiring diagram for your vehicle, it’s time to get started on the installation process. Follow the steps below to install your new stereo system:

Step 1: Remove the Old Stereo

The first step in the installation process is to remove the old stereo from your vehicle. To do this, you will need to remove any screws or fasteners that are holding the old stereo in place. Once you have removed these, gently pull the stereo out of the dashboard.

Step 1a: Disconnect the Wiring

Before you completely remove the old stereo, you will need to disconnect the wiring. To do this, carefully remove any connectors or clips that are holding the wiring in place. Once you have done this, you can completely remove the old stereo from the dashboard.

Step 2: Install the New Stereo

Now that you have removed the old stereo, it’s time to install the new one. Begin by connecting the wiring harness for your new stereo to the wiring harness in your vehicle. Make sure you connect the wires according to the wiring diagram.

Step 2a: Connect the Antenna

Once you have connected the wiring harness, you will need to connect the antenna. Simply plug the antenna into the back of your new stereo system.

Step 3: Test the New Stereo

Now that you have installed your new stereo system, it’s time to test it out. Turn on your vehicle and test all the functions of the new stereo, including AM/FM radio, CD player, and any other features that may be included with your specific system.

FAQ

Q: Can I install a new stereo system myself?

A: Yes, you can install a new stereo system in your vehicle yourself. However, it’s important to follow all the instructions carefully and make sure you have all the necessary tools and materials on hand before you begin.

Q: Do I need to disconnect the battery before installing a new stereo?

A: Yes, it is recommended that you disconnect the negative battery cable before starting any electrical work. This will prevent any accidental short circuits or electrical shocks.

Q: How do I know if my wiring diagram is correct?

A: Your wiring diagram should match the colors and functions of the wires in your vehicle. If you are unsure about anything, consult a professional or refer to the instructions that come with your new stereo system.

Q: Can I use the existing wiring in my vehicle?

A: Yes, you can use the existing wiring in your vehicle to install a new stereo system. However, it’s important to make sure the wiring is in good condition and properly connected to avoid any electrical problems.

Q: What tools do I need to install a new stereo system?

A: You will need wire cutters, wire strippers, crimp connectors, electrical tape, and a wiring diagram for your specific vehicle.