1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your JVC KD-R481 Car Media Player. Please read this manual thoroughly before using the product to ensure correct operation and to prevent damage.
The JVC KD-R481 is a single DIN on-dash media player designed for in-car entertainment, featuring USB connectivity for Android devices and various audio playback options.
2. Safety Information
Observe the following safety precautions to prevent accidents, injury, or damage to the unit:
- Do not operate the unit in a manner that distracts you from driving. Always keep your attention on the road.
- Ensure proper installation by a qualified technician to prevent electrical shorts or malfunctions.
- Do not disassemble or modify the unit. This may cause accidents, fire, or electric shock.
- Keep the volume at a level where you can still hear outside sounds, such as emergency vehicle sirens.
- Avoid exposing the unit to direct sunlight, extreme temperatures, or excessive moisture.
3. What's in the Box
Verify that all items are present before installation:
- Player with Detachable Panel
- Wiring Harness
- Screws
- Warranty Certificate
- User Manual (this document)
- Panel Carry Case
- Remote Control
4. Setup and Installation
Professional installation is recommended for optimal performance and safety. Refer to the wiring harness diagram for correct connections.
4.1. Wiring Connections
Connect the wiring harness to your vehicle's power, ground, and speaker wires according to the provided diagram. Ensure all connections are secure to prevent intermittent operation or damage.
4.2. Mounting the Unit
Install the unit into the vehicle's dashboard using the supplied mounting hardware. Ensure the unit is securely fastened and does not obstruct any vehicle controls or airbags.
4.3. Detachable Face Panel
The face panel is detachable for security. To attach, align the panel with the main unit and push until it clicks into place. To detach, press the release button (usually located near the top left of the panel) and pull the panel away.

Figure 1: Front view of the JVC KD-R481 Car Media Player. The image displays the main unit with its detachable face panel, featuring a central display, control buttons, and a USB port.
5. Operating Instructions
5.1. Basic Controls
- SRC (Source) Button: Press to cycle through available audio sources (e.g., Tuner, USB, AUX). Press and hold to turn the unit off.
- Volume Knob (VOL): Rotate to adjust the audio volume.
- +/– Buttons: Used for various functions depending on the mode, such as tuning radio stations or navigating menus.
- Play/Pause (►/II) / ENTER Button: Controls playback for media sources and confirms selections in menus.
- Skip/Search Buttons (◄◄ / ►►): Skips tracks, fast forwards/rewinds, or changes radio stations.
- Display: Shows current source, track information, radio frequency, and time.
5.2. USB/Android Music Playback
The unit supports music playback from Android smartphones or tablets via USB (AUTO MODE/AUDIO MODE).
- Connect your Android device to the USB port on the front panel. The USB port provides 5V/1.0A power.
- Press the SRC button to select the USB source.
- The unit will automatically detect the device and begin playback.
- Use the Play/Pause, Skip/Search buttons to control playback.
- The unit is FLAC compatible with tag support, along with WMA, MP3, and WAV formats.
5.3. Radio Operation
The unit features an FM/AM tuner with 18 FM and 6 AM preset stations.
- Press the SRC button to select the Tuner source.
- Use the Skip/Search buttons to manually tune or seek for stations.
- To store a preset, tune to the desired station, then press and hold one of the numbered preset buttons (1-6) until you hear a beep.
- To recall a preset, simply press the corresponding numbered button.
5.4. Audio Settings
The KD-R481 includes a 13-Preset EQ and DRVN EQ for sound customization.
- EQ Settings: Access the audio menu (refer to the full user manual for specific button presses) to select from 13 preset equalizer curves or customize your own.
- DRVN EQ: This feature enhances bass and treble for a dynamic sound experience. Activate or deactivate it through the audio settings.
- Subwoofer Control: The unit offers dedicated subwoofer output control. Adjust subwoofer levels and crossover frequencies via the audio menu.
5.5. Steering Remote Control
The unit is compatible with steering wheel remote controls (adapter may be required, sold separately). This allows for convenient control of basic functions without taking your hands off the steering wheel.
5.6. Wireless Remote Control
Use the included wireless remote control for convenient operation from a distance. Refer to the remote control's specific instructions for button functions.
6. Maintenance
6.1. Cleaning the Unit
Wipe the unit's surface with a soft, dry cloth. For stubborn dirt, dampen the cloth with a small amount of water or a mild, non-abrasive cleaner. Do not use harsh chemicals or abrasive materials.
6.2. Detachable Panel Care
When detaching the face panel, store it in the provided panel carry case to protect it from scratches and dust.
7. Troubleshooting
If you experience issues with your KD-R481, consult the following table before contacting service.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Incorrect wiring; Blown fuse | Check power and ground connections. Replace fuse if necessary. |
| No sound | Volume too low; Mute activated; Speaker wiring incorrect | Increase volume. Deactivate mute. Check speaker connections. |
| USB device not recognized | Device not compatible; Corrupted files; Loose connection | Ensure device compatibility. Check file formats. Reconnect USB device. |
| Poor radio reception | Antenna not connected; Weak signal | Check antenna connection. Try tuning to a stronger station. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | KD-R481 |
| Power Output | 50W x 4 / 50W x 2 + Subwoofer (4 ohms) 50W x 1 |
| Display | 2-Line VA LCD Display, Variable-Color Accent Key |
| USB Port | 1 (Front), 5V/1.0A, Android Music Playback (AUTO MODE/AUDIO MODE) |
| Audio Formats | FLAC (with Tag), WMA, MP3, WAV |
| Equalizer | 13-Preset EQ, DRVN EQ |
| Tuner | FM/AM, 18FM + 6AM Preset Stations |
| Hardware Interface | 3.5mm Audio, USB |
| Dimensions (LxWxH) | 15.9 x 18.2 x 5.3 cm |
| Item Weight | 1.5 kg |
| Special Features | Steering Remote Control Ready, Wireless Remote Control, Detachable Face Panel |
9. Warranty and Support
For warranty information, please refer to the Warranty Certificate included with your product. Keep your proof of purchase for warranty claims.
For technical support or service inquiries, please contact your authorized JVC dealer or visit the official JVC support website.
Manufacturer: Japan Victor Company.





