When it comes to car audio systems, having a reliable and accurate wiring diagram is the key to success. If you own a 1999 Toyota Avalon and you are planning to install an aftermarket radio, this article will guide you through the process with a complete wiring diagram, FAQ, and table of wire colors. Whether you are an experienced installer or a beginner, this article will provide you with everything you need to know about the 1999 Toyota Avalon radio wiring diagram.
What is a Wiring Diagram?
A wiring diagram is a schematic representation of the electrical connections in a system. It shows how the wires are connected and where they go. Having a wiring diagram is important when you are installing an aftermarket radio because you need to know which wires are for power, ground, speakers, and other functions. It is also important to have a wiring diagram if you need to troubleshoot any problems with your car audio system.
When it comes to the 1999 Toyota Avalon radio wiring diagram, there are a few things you need to know. First, this car has a standard radio system with six speakers. The radio is located in the center console of the car. The wiring diagram is divided into two parts: the radio wiring and the speaker wiring. Both of these diagrams are shown below.
1999 Toyota Avalon Radio Wiring Diagram
| Wire Color | Function | Pin |
|---|---|---|
| Yellow | Battery/Constant | 16 |
| Red | Ignition/Switched | 1 |
| Black | Ground | 2 |
| White | Front Left Speaker (+) | 6 |
| White/Black | Front Left Speaker (-) | 10 |
| Gray | Front Right Speaker (+) | 7 |
| Gray/Black | Front Right Speaker (-) | 11 |
| Green | Rear Left Speaker (+) | 5 |
| Green/Black | Rear Left Speaker (-) | 9 |
| Violet | Rear Right Speaker (+) | 8 |
| Violet/Black | Rear Right Speaker (-) | 12 |
FAQ
1. What size radio fits in a 1999 Toyota Avalon?
The radio size for a 1999 Toyota Avalon is a standard DIN size, which is 7 inches wide by 2 inches tall. This means that most aftermarket radios will fit in this car without any modifications.
2. Does the 1999 Toyota Avalon have a factory amplifier?
Yes, the 1999 Toyota Avalon has a factory amplifier. The factory amplifier is located under the passenger seat. If you are planning to install an aftermarket radio, you will need to bypass the factory amplifier or use a special adapter to connect the aftermarket radio to the factory amplifier.
3. What are the most common problems with the 1999 Toyota Avalon radio?
The most common problems with the 1999 Toyota Avalon radio are a loss of sound or a blown fuse. If you are experiencing a loss of sound, check the wiring connections and the fuse. If the fuse is blown, replace it with a new one of the same amperage. If the problem persists, you may need to replace the radio.
4. What is the cost to replace the 1999 Toyota Avalon radio?
The cost to replace the 1999 Toyota Avalon radio varies depending on the type of radio you choose and where you get it installed. On average, you can expect to pay between $100 and $500 for a new radio and installation.
5. Can I install an aftermarket radio in the 1999 Toyota Avalon?
Yes, you can install an aftermarket radio in the 1999 Toyota Avalon. However, you will need to have a wiring diagram and the necessary adapter harnesses to connect the new radio to the car’s wiring system. It is also important to note that installing an aftermarket radio may void the car’s warranty, so be sure to check with your dealer before making any modifications.
1999 Toyota Avalon Speaker Wiring Diagram
In addition to the radio wiring diagram, you will also need to know the speaker wiring diagram for the 1999 Toyota Avalon. This diagram shows the wire colors and locations for the six speakers in this car. The speaker wiring diagram is shown below.
| Speaker | Wire Color (+) | Wire Color (-) |
|---|---|---|
| Front Left | White | White/Black |
| Front Right | Gray | Gray/Black |
| Rear Left | Green | Green/Black |
| Rear Right | Violet | Violet/Black |
FAQ
1. Can I replace the speakers in a 1999 Toyota Avalon?
Yes, you can replace the speakers in a 1999 Toyota Avalon. However, you will need to have a wiring diagram and the necessary tools to remove the old speakers and install the new ones. It is also important to choose speakers that are compatible with the car’s audio system and that fit in the existing speaker holes.
2. What size are the speakers in a 1999 Toyota Avalon?
The front speakers in a 1999 Toyota Avalon are 6.5 inches in diameter. The rear speakers are 6×9 inches in diameter. If you are planning to replace the speakers in this car, be sure to choose speakers that fit these sizes.
3. What is the best type of speaker for a 1999 Toyota Avalon?
The best type of speaker for a 1999 Toyota Avalon depends on your personal preference and budget. However, some popular options include coaxial speakers, component speakers, and subwoofers. Be sure to choose speakers that are compatible with the car’s audio system, and that provide the sound quality and performance that you desire.
4. How do I troubleshoot speaker problems in a 1999 Toyota Avalon?
If you are experiencing problems with the speakers in your 1999 Toyota Avalon, there are a few things you can do to troubleshoot the issue. First, check the wiring connections to ensure that they are secure and connected properly. If the wiring is okay, check the fuses and replace any that are blown. If the problem persists, you may need to replace the speakers or the audio system.
5. Can I upgrade the audio system in a 1999 Toyota Avalon?
Yes, you can upgrade the audio system in a 1999 Toyota Avalon. However, you will need to choose components that are compatible with the car’s wiring and that fit in the existing spaces. Some popular upgrades include adding a subwoofer, upgrading the speakers, and installing a new amplifier or head unit.
Conclusion
Having a reliable and accurate wiring diagram is essential when it comes to installing an aftermarket radio or troubleshooting problems with your car’s audio system. If you own a 1999 Toyota Avalon, this article has provided you with a comprehensive guide to the radio and speaker wiring diagrams, FAQ, and table of wire colors. Whether you are an experienced installer or a beginner, this article has everything you need to know about the 1999 Toyota Avalon radio wiring diagram.
