350Z Rear Speaker Install
Upgrading the audio system in a Nissan 350Z can significantly enhance the in-car listening experience, and one of the most effective improvements is installing rear speakers. While the factory sound system delivers decent audio, many enthusiasts seek richer tones, improved clarity, and better volume distribution throughout the cabin.
The rear speaker location plays a crucial role in creating a balanced soundstage. This guide walks through the process of installing rear speakers in the 350Z, covering tools needed, speaker selection, removal of rear panels, wiring considerations, and mounting techniques to achieve optimal performance without damaging factory components.
How to Perform a 350Z Rear Speaker Install for Enhanced Audio Quality
Installing new rear speakers in a Nissan 350Z can dramatically improve the car’s overall soundstage and audio performance. The factory-installed speakers in many 350Z models are often basic units that lack the clarity, depth, and power handling of aftermarket options. A rear speaker upgrade not only balances the audio output from front to rear but also enhances the listening experience, especially for music lovers who enjoy immersive sound while driving.
Commercial Speaker Installation Near MeThe installation process is relatively straightforward for individuals with basic automotive and audio wiring knowledge. Access to the rear speaker locations is achieved by removing interior panels, typically found in the parcel shelf behind the seats.
With proper tools and compatible speakers—usually 6.5-inch coaxial units—most enthusiasts can complete the job in under two hours without modifying the existing wiring harness. Ensuring correct polarity and using proper insulation on electrical connections are key to maintaining sound quality and preventing short circuits.
Required Tools and Materials for 350Z Rear Speaker Installation
To successfully complete a 350Z rear speaker install, it's essential to gather the right tools and materials before beginning. You’ll need a trim removal tool to safely pry off the parcel shelf without scratching the interior, a Phillips-head screwdriver for any hidden screws, and wire strippers/crimpers for securing connections.
Insulated butt connectors or soldering equipment are recommended for clean, reliable wiring. Additionally, you’ll need aftermarket 6.5-inch coaxial speakers that are compatible with the factory speaker depth and mounting diameter.
Crutchfield Speaker InstallationA multimeter can help identify wiring polarity in the factory harness, and electrical tape or heat shrink tubing ensures safe insulation. Having dielectric grease on hand can also protect connections from moisture and corrosion over time. With all materials prepared, the installation process becomes smoother and more efficient.
Step-by-Step Guide to Removing the Rear Speaker Panels
Accessing the rear speakers in the 350Z starts with removing the parcel shelf that spans across the back of the cabin. Begin by opening the hatch and removing any screws or fasteners located on either end of the shelf, usually hidden under plastic covers.
Using a trim removal tool, gently pry the shelf away from the snap clips securing it to the rear cabin wall. Work slowly around the perimeter to avoid breaking any clips. Once the shelf is free, disconnect any wiring connected to the LED map lights or cabin air vents if applicable.
The factory speakers are mounted directly into the shelf, secured with three screws each. Remove these mounting screws and carefully pull the old speaker out from the backside. Disconnect the factory wiring harness by releasing the locking tab or gently pulling it apart. Label each side (left and right) to avoid confusion during reinstallation.
Custom Car Speaker InstallationChoosing and Installing the Right Aftermarket Speakers
Selecting the best aftermarket speakers for your 350Z involves considering sensitivity, power handling, frequency response, and physical dimensions. Ideal options include 6.5-inch component or coaxial speakers from reputable brands such as JL Audio, Focal, or Kenwood, which offer superior sound clarity and durability.
Ensure the speaker’s mounting depth does not exceed the space available in the parcel shelf—most aftermarket units fit with minimal clearance issues. Once selected, test-fit the new speaker before making permanent connections.
Connect the speaker wires using crimped or soldered connectors, observing correct polarity (positive to positive, negative to negative) to maintain phase coherence. Secure the speaker using the original screw holes and mounting screws, tightening them evenly to prevent warping. Reattach the wiring harness or use adapter cables as needed. After both sides are installed, reinstall the parcel shelf and test the system at low volume to confirm proper operation.
| Component | Recommendation | Notes |
|---|---|---|
| Speaker Size | 6.5-inch coaxial | Matches factory opening; ideal for rear fill |
| Power Handling (RMS) | 40-75 watts per speaker | Compatible with stock head unit or aftermarket amplifier |
| Impedance | 4 ohms | Standard for factory-compatible systems |
| Tools Needed | Trim tool, screwdriver, wire stripper | Minimizes risk of interior damage |
| Installation Time | 60–90 minutes | For both left and right sides |
Frequently Asked Questions
What size speakers fit in the rear of a 350Z?
The rear speakers in a Nissan 350Z are sized at 6x9 inches. Most factory and aftermarket 6x9 speakers will fit without modification. Ensure the mounting depth and magnet size are compatible to avoid interference with the inner panels or trim. Using a mounting bracket may be necessary for certain speaker models to ensure a secure fit and proper alignment.
Custom Speaker InstallDo I need an adapter to install rear speakers in a 350Z?
Generally, you don’t need an adapter for 6x9-inch rear speakers in a 350Z, as the factory harness matches most aftermarket speakers. However, an adapter harness can simplify installation by allowing plug-and-play connectivity without cutting wires. Use a harness adapter compatible with Nissan/Infiniti models to ensure proper connection and reduce the risk of electrical issues during installation.
How do I remove the rear speaker cover on a 350Z?
To remove the rear speaker cover, gently pry it using a plastic trim removal tool starting from the bottom edge. Work your way around the perimeter, releasing the plastic clips carefully. Avoid using metal tools to prevent damage to the cover or surrounding trim. Once all clips are released, lift the cover off to access the speaker and mounting screws behind it.
Can I install amplified speakers in the rear of my 350Z?
Yes, you can install amplified speakers or use an external amplifier to power rear speakers in a 350Z. Make sure the amplifier’s output matches the speakers’ power handling specifications. Run proper gauge wiring from the amplifier to the rear, and integrate it with your head unit using RCA preamp outputs. This setup improves sound clarity and volume, especially with high-performance audio systems.
Custom Speaker Installation
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