NewPowerGear JCEC201702170100004
Instruction Manual
NewPowerGear Stereo Radio Receiver Wire Harness Cable Replacement
Model: JCEC201702170100004
Product Overview
This NewPowerGear Stereo Radio Receiver Wire Harness Cable is designed as a direct replacement for specific JVC car stereo models. It facilitates the connection of your aftermarket car stereo to the vehicle's factory wiring, ensuring proper power, ground, and speaker connections without cutting or modifying the original vehicle wiring. This harness simplifies installation and helps maintain the integrity of your vehicle's electrical system.
Safety Information
- Always disconnect the vehicle's battery before beginning any electrical installation to prevent short circuits and electrical shock.
- Ensure all connections are secure and properly insulated to prevent short circuits and fire hazards.
- If you are unsure about any step of the installation process, consult a qualified automotive technician.
- Do not exceed the recommended power ratings for the wiring harness.
- Keep wiring away from moving parts, heat sources, and sharp edges.
Compatibility
This wire harness is compatible with the following JVC stereo receiver models:
- JVC KD-R208
- JVC KD-R300
- JVC KD-R310
- JVC KD-R400
- JVC KD-R600
- JVC KD-R610
- JVC KD-R618
Please verify your stereo model number before installation to ensure proper fitment.
Package Contents
- 1 x NewPowerGear Stereo Radio Receiver Wire Harness Cable
Setup and Installation
Follow these steps carefully for a successful installation:
- Preparation:
- Ensure your vehicle's ignition is off and disconnect the negative terminal of the car battery.
- Carefully remove your existing car stereo from the dashboard. Refer to your vehicle's service manual for specific instructions on stereo removal.
- Identify Wiring:
The NewPowerGear wire harness is color-coded to match standard aftermarket stereo wiring. You will need to match the wires from this harness to the corresponding wires on your new aftermarket stereo's harness.

Image: The NewPowerGear wire harness showing its various color-coded wires, designed for easy identification and connection to an aftermarket stereo. The wires are neatly bundled, indicating a new product.
Common wire color functions include:
- Yellow: Constant 12V (Battery)
- Red: Switched 12V (Accessory)
- Black: Ground
- Blue: Power Antenna / Remote Turn-On
- Orange: Illumination / Dash Light
- White/White-Black: Front Left Speaker (+/-)
- Gray/Gray-Black: Front Right Speaker (+/-)
- Green/Green-Black: Rear Left Speaker (+/-)
- Purple/Purple-Black: Rear Right Speaker (+/-)
- Make Connections:
Using appropriate connectors (crimp caps, solder, or heat shrink connectors), securely connect each wire from the NewPowerGear harness to its corresponding wire on your aftermarket stereo's harness. Ensure connections are tight and insulated to prevent short circuits.

Image: A detailed view of the black plastic connector end of the wire harness. This end plugs directly into the vehicle's factory wiring harness, providing a seamless connection for the stereo.
- Connect to Vehicle:
Once all connections between the NewPowerGear harness and your aftermarket stereo harness are complete, plug the black plastic connector end of the NewPowerGear harness into the vehicle's factory wiring harness. This connection should be firm and secure.
- Test and Reassemble:
- Before fully reassembling the dashboard, reconnect the vehicle's battery.
- Turn on the ignition and test the new stereo's functions (power, audio, balance, fade, radio, CD/USB, etc.).
- If all functions work correctly, carefully reassemble the dashboard and secure the stereo in place.
Operating
Once correctly installed, the wire harness operates passively, providing the necessary electrical connections for your JVC stereo receiver. There are no user-operable controls on the harness itself. The functionality of your stereo will depend on the stereo unit and its features.
Maintenance
The NewPowerGear wire harness requires minimal maintenance. Once installed, ensure it is not subjected to excessive pulling, bending, or exposure to moisture or extreme temperatures. Periodically check connections for looseness if you experience intermittent issues, though this is rarely necessary with proper initial installation.
Troubleshooting
- No Power to Stereo:
- Check vehicle's battery connection.
- Verify the vehicle's fuse for the stereo/accessory circuit.
- Ensure the yellow (constant 12V) and red (switched 12V) wires are correctly connected and receiving power.
- Confirm the black (ground) wire has a good connection to chassis ground.
- No Sound from Speakers:
- Check all speaker wire connections (white, gray, green, purple and their black-striped counterparts) for proper polarity and secure contact.
- Ensure the stereo's fader and balance settings are not set to an extreme.
- Verify the stereo's amplifier is functioning.
- Intermittent Power/Sound:
- Inspect all wire connections for looseness or corrosion.
- Ensure the harness is fully seated in the vehicle's factory connector.
- Stereo Not Turning Off with Ignition:
- Verify the red (switched 12V) wire is connected to a circuit that turns off with the ignition.
Specifications
| Brand | NewPowerGear |
| Model Number | JCEC201702170100004 |
| ASIN | B06VWCFTFQ |
| Compatibility | JVC KD-R208, KD-R300, KD-R310, KD-R400, KD-R600, KD-R610, KD-R618 |
| First Available | February 17, 2017 |
Warranty and Support
For warranty information or technical support regarding your NewPowerGear wire harness, please refer to the seller's policies on the platform where the product was purchased or contact NewPowerGear directly through their official channels. Keep your purchase receipt as proof of purchase.
For general automotive electrical advice, consider consulting a professional automotive technician or reputable online resources.
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