1. Introduction
This manual provides instructions for the installation and use of the 44Pin Radio Wiring Harness Adapter. This adapter is designed to facilitate the connection of an aftermarket 2 Din Car Android Head Unit to specific Chevrolet vehicle models, ensuring proper power, speaker, and auxiliary audio connections without cutting or splicing original factory wiring.
Compatibility: This wiring harness is compatible with the following vehicle models:
- Chevrolet Spark 2010+
- Chevrolet Volt 2009-2015
- Chevrolet Aveo 2011-2015
Important: Before purchasing and installing, please carefully check your car’s year, model, and the original radio plug to ensure compatibility. This listing does not include DVD, GPS, MP5 players, or any additional accessories.
2. Safety Information
For your safety and to ensure proper installation, it is highly recommended to have this product installed by a qualified professional if you are not familiar with car audio equipment and electrical systems. Incorrect installation can lead to damage to the vehicle's electrical system, the head unit, or the harness itself.
- Always disconnect the vehicle's battery before beginning any electrical work.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- Do not force connectors; ensure they align correctly before pushing them together.
- Keep wiring away from moving parts, heat sources, and sharp edges.
3. Product Overview and Components
The 44Pin Radio Wiring Harness Adapter consists of several key components designed for seamless integration:
Key connectors include:
- 44-Pin GM Connector: This is the large connector designed to plug directly into your vehicle's factory radio harness.
- 16-Pin Plug: This connector is designed to plug into the back of your aftermarket 2 Din Car Android Head Unit.
- Auxiliary Audio Connectors (RCA): These typically include red and white RCA jacks for left and right audio channels, allowing connection of external audio sources or amplifiers.
- Antenna Adapter: A separate adapter may be included to connect the vehicle's factory antenna to the aftermarket head unit.
4. Setup and Installation
This section outlines the general steps for installing the wiring harness. Professional installation is strongly recommended.
- Prepare the Vehicle:
- Ensure the vehicle is turned off and the parking brake is engaged.
- Disconnect the negative terminal of the vehicle's battery to prevent electrical shorts.
- Carefully remove the factory radio from the dashboard, following your vehicle's specific service manual instructions.
- Disconnect the factory wiring harness and antenna cable from the back of the factory radio.
- Connect the Wiring Harness Adapter:
- Locate the vehicle's factory radio harness. Plug the 44-pin GM connector of the adapter into the corresponding port on the vehicle's factory wiring. Ensure it clicks securely into place.
- Connect the 16-pin plug of the adapter to the wiring input on the back of your aftermarket 2 Din Car Android Head Unit. Match the pins carefully.
- If your aftermarket head unit requires auxiliary audio inputs (e.g., for an external amplifier or video input), connect the RCA auxiliary audio connectors from the harness to the appropriate RCA jacks on your head unit.
- Connect the antenna adapter (if included and necessary) to the vehicle's antenna cable and then to the antenna input on your new head unit.
- Test Connections:
- Before fully reassembling the dashboard, temporarily reconnect the vehicle's battery.
- Turn on the vehicle's ignition (do not start the engine) and power on the new Android head unit.
- Verify that the head unit receives power, audio plays through the speakers, and all basic functions (e.g., radio, auxiliary inputs) are working correctly.
- If any issues arise, refer to the Troubleshooting section.
- Final Assembly:
- Once all functions are verified, disconnect the battery again.
- Carefully route all wiring to prevent pinching or interference with other components.
- Secure the aftermarket head unit in the dashboard.
- Reinstall all dashboard trim pieces.
- Reconnect the vehicle's battery.
5. Operation Verification
Once the harness is installed and the head unit is powered on, verify the following:
- Power: The head unit should power on and off with the vehicle's ignition.
- Audio: Sound should be produced clearly through all vehicle speakers. Test various audio sources (radio, USB, Bluetooth, etc.).
- Steering Wheel Controls (if applicable): If your head unit and vehicle support steering wheel controls and a compatible interface was used, verify their functionality.
- Auxiliary Inputs: Test any connected auxiliary audio or video inputs.
The wiring harness primarily provides the electrical interface; the operation of the head unit itself will be governed by its own instruction manual.
6. Maintenance
The wiring harness adapter requires minimal maintenance. To ensure longevity and reliable performance:
- Inspect Connections: Periodically check that all connections remain secure and free from corrosion.
- Keep Dry: Ensure the harness and its connections are kept dry and away from moisture.
- Avoid Stress: Do not pull or excessively bend the wires, especially near the connectors, to prevent damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Head unit does not power on. | Loose power connection, incorrect wiring, blown fuse. | Check 44-pin and 16-pin connections. Verify vehicle's fuse box for blown fuses. Ensure battery is properly reconnected. |
| No sound from speakers. | Loose speaker connections, incorrect speaker wiring, head unit settings. | Check all speaker wire connections. Ensure head unit's audio settings (e.g., fader, balance, mute) are correct. |
| Auxiliary audio (RCA) not working. | Incorrect RCA connection, head unit input selection. | Verify RCA cables are securely connected to both the harness and the head unit. Ensure the head unit is set to the correct auxiliary input source. |
| Radio reception is poor. | Antenna adapter not connected or faulty. | Ensure the antenna adapter is correctly connected to both the vehicle's antenna and the head unit. |
If you encounter persistent issues, please consult a professional car audio installer.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | GM44P |
| Item Type | Cables, Adapters & Sockets |
| Voltage | 12 V |
| Material | Copper |
| Connectors | 16 Pin Plug, 44 Pin GM Connector, Auxiliary Audio Connector |
| Item Weight | 0.12kg |
| Item Size | Spark 44P wiring harness adapter |
| Suitable for | 2 Din Car Android Head Unit |
| Compatible Car 1 | Chevrolet Spark 2010+ |
| Compatible Car 2 | Chevrolet Volt 2009-2015 |
| Compatible Car 3 | Chevrolet Aveo 2011-2015 |
9. User Tips
- Verify Compatibility: Always double-check your vehicle's exact year, model, and the configuration of its original radio plug against the product specifications before starting installation. A clear photo of your car's radio plug can help confirm compatibility.
- Professional Installation: If you are unsure about any step of the installation process, it is highly recommended to seek assistance from a professional car audio installer. This ensures correct wiring and prevents potential damage to your vehicle or new head unit.
- Test Before Final Assembly: Always perform a functional test of the head unit and all connections before fully reassembling the dashboard. This saves time and effort if adjustments are needed.
10. Frequently Asked Questions (FAQ)
- Q: Do I need to cut any wires to install this harness?
- A: No, this harness adapter is designed for a plug-and-play installation, connecting directly to your vehicle's factory wiring and your aftermarket head unit without the need for cutting or splicing wires.
- Q: Will this harness retain my steering wheel controls?
- A: This harness provides the basic power and speaker connections. Retention of steering wheel controls typically requires an additional interface module, which is not included with this wiring harness.
- Q: What if my car model is not listed as compatible?
- A: If your specific car model or year is not listed, it is likely that this harness is not compatible. Please contact the seller with details of your vehicle for assistance in finding the correct adapter.
11. Warranty and Support
For any questions, technical support, or warranty inquiries regarding this product, please contact the seller directly through the platform where the purchase was made. Provide your order number and a detailed description of the issue for prompt assistance.