1. Introduction
Thank you for choosing the Boomboost 4022D Car Radio MP5 Player. This device is designed to enhance your in-car entertainment and connectivity with features such as MP5/MP4 playback, FM radio, Bluetooth hands-free calling, and support for a rear view camera. This manual provides essential information for proper installation, operation, and maintenance of your new car radio.
2. Package Contents
Please check the package carefully to ensure all items are present:
- 1 x Boomboost 4022D Car MP5 Player
- 1 x English User Manual
- 1 x Rear View Camera (4LED Car Camera)
- 2 x Remote Controls (one standard, one steering wheel remote)
- 4 x Wiring Harnesses
- 2 x Mounting Screws
Image: All components included in the Boomboost 4022D package, including the main unit, camera, remotes, and wiring.
3. Safety Information
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in damage to the product, vehicle, or personal injury.
- Professional Installation Recommended: Due to the complexity of car electrical systems, professional installation is highly recommended.
- Power Supply: This unit is designed for 12V DC negative ground systems only.
- Avoid Water and Moisture: Do not expose the unit to water or excessive moisture.
- Ventilation: Ensure adequate ventilation around the unit to prevent overheating.
- Driving Safety: Do not operate the unit in a way that distracts you from driving. Always prioritize road safety.
- Volume Control: Keep the volume at a level where you can still hear outside traffic sounds.
4. Product Overview
4.1 Front Panel Controls
The front panel features a 4.1-inch TFT display and various buttons and ports for easy access and control.
Image: Front view of the Boomboost 4022D car radio, showing the display, rotary knob, and various control buttons.
- MIC: Built-in microphone for hands-free calls.
- MUTE/CLK: Mute audio / Press and hold to display clock.
- Rotary Knob: Adjust volume, navigate menus, select options.
- O/M: Power On/Off / Mode selection.
- BAND/APS: Select radio band / Auto-scan and preset stations.
- AUX: 3.5mm auxiliary input jack.
- USB Port: For media playback from USB drives.
- TF Card Slot: For media playback from TF (MicroSD) cards.
- Numbered Buttons (1-6): Radio presets, track selection.
- DVR IN: Input for DVR (Digital Video Recorder).
- CHARGE: USB charging port.
4.2 Rear Panel Connections
The rear panel provides all necessary connections for power, speakers, and external devices.
Image: Rear view of the car radio, illustrating the various input/output ports and wiring connectors.
- ISO Connector: Standard car radio wiring harness for power and speakers.
- Antenna Input: For FM radio antenna.
- RCA Audio Output: For connecting external amplifiers.
- Video Input: For rear view camera and other video sources.
- Video Output: For connecting external monitors.
5. Setup and Installation
Proper installation is crucial for optimal performance. If you are unsure about any steps, consult a professional installer.
5.1 Dimensions
Ensure your vehicle's dashboard opening is compatible with the unit's dimensions.
Image: Diagram showing the physical dimensions of the Boomboost 4022D unit, including width, height, and depth.
- Width: 17.8 cm (front panel 18.8 cm)
- Height: 5.8 cm (front panel 5 cm)
- Depth: 13.5 cm
5.2 Wiring Diagram
Connect the wiring harnesses as per the standard ISO car radio wiring color codes. Refer to your vehicle's wiring diagram for specific connections.
- Yellow (B+): Constant 12V power.
- Red (ACC): Switched 12V power (ignition).
- Black (GND): Ground connection.
- Blue (ANT): Power antenna/amplifier remote turn-on.
- Orange (ILL): Illumination wire.
- Brown (REVERSE): Reverse gear signal for rear camera activation.
- Speaker Wires: Connect to corresponding vehicle speakers (e.g., White/White-Black for Front Left, Grey/Grey-Black for Front Right, Green/Green-Black for Rear Left, Purple/Purple-Black for Rear Right).
5.3 Rear View Camera Installation
Connect the included rear view camera to the dedicated video input on the car radio. The camera's power wire should be connected to your vehicle's reverse light power source, and its ground wire to a chassis ground. This ensures the camera activates automatically when the vehicle is put into reverse gear.
6. Operating Instructions
6.1 Basic Operation
- Power On/Off: Press the O/M button to turn the unit on. Press and hold to turn off.
- Volume Control: Rotate the Rotary Knob to adjust the volume.
- Mode Selection: Press the O/M button repeatedly to cycle through available modes (Radio, USB, TF, AUX, Bluetooth, AV IN).
- Mute: Press the MUTE/CLK button to mute/unmute audio.
- Clock Setting: Press and hold the MUTE/CLK button to display the clock. Use the rotary knob or menu settings to adjust time.
6.2 Radio (FM)
- Select Band: In Radio mode, press BAND/APS to switch between FM1, FM2, FM3 bands.
- Auto Scan: Press and hold BAND/APS to automatically scan and store strong stations into presets.
- Manual Tuning: Use the Previous/Next Track buttons to fine-tune frequencies.
- Preset Stations: Press numbered buttons (1-6) to select a stored station. Press and hold a numbered button to save the current station to that preset.
6.3 Bluetooth Function
The unit supports Bluetooth for hands-free calling and audio streaming.
Image: The car radio display showing an active Bluetooth call, with a smartphone positioned next to the unit.
- Pairing:
- Select Bluetooth mode on the car radio.
- Enable Bluetooth on your mobile phone and search for available devices.
- Select "BT-CAR" (or similar name) from the list. If prompted for a password, enter "0000".
- Once paired, the Bluetooth icon on the radio display will illuminate.
- Hands-Free Calling:
- Answer Call: Press the Answer button (green phone icon) on the front panel.
- End Call: Press the End Call button (red phone icon) on the front panel.
- Dialing: Use the numeric keypad on the screen or your phone to dial.
- Audio Streaming: Play music from your paired phone. Use the radio's controls for play/pause, next/previous track.
6.4 MP5/MP4 Playback
Insert a USB drive or TF card into the respective slot. The unit will automatically switch to USB/TF mode and begin playback of compatible media files.
- Supported Formats: MP3, WMA, WMV, OGG, APE, ACC, FLAC, MP4, AVI, etc.
- Navigation: Use the touch screen or remote control to browse folders and select files.
6.5 Rear View Camera
When the vehicle is shifted into reverse gear, the unit will automatically display the rear view camera feed on the screen, provided the camera is correctly installed and wired.
7. Maintenance
- Cleaning the Screen: Use a soft, dry cloth to wipe the screen. For stubborn marks, use a screen cleaner specifically designed for electronics. Do not use abrasive cleaners.
- General Cleaning: Wipe the unit's exterior with a soft, damp cloth. Avoid using harsh chemicals.
- Avoid Extreme Temperatures: Do not expose the unit to extreme heat or cold, as this can affect its performance and lifespan.
- Fuse Replacement: If the unit does not power on, check the fuse located on the rear of the unit. Replace it with a fuse of the same rating (e.g., 10A).
8. Troubleshooting
If you encounter issues with your Boomboost 4022D, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Incorrect wiring; Blown fuse; Loose connection | Check power (Yellow, Red, Black) connections. Replace fuse if blown. Ensure all wires are securely connected. |
| No sound | Speaker wires disconnected; Volume too low; Mute activated | Check speaker wiring. Increase volume. Deactivate mute function. |
| Bluetooth not connecting | Bluetooth not enabled on phone/radio; Incorrect pairing process | Ensure Bluetooth is active on both devices. Re-attempt pairing process (Section 6.3). |
| Rear camera not displaying | Camera not powered; Video input incorrect; Reverse trigger wire not connected | Check camera power and ground. Ensure video cable is connected to the correct input. Verify reverse trigger wire connection. |
| USB/TF card not recognized | Unsupported file format; Corrupted media; Card/drive not inserted correctly | Ensure media is in a supported format. Try a different USB/TF card. Reinsert the card/drive firmly. |
9. Specifications
Technical specifications for the Boomboost 4022D Car Radio MP5 Player:
- Model Name: 4022D
- Brand: Boomboost
- Display Size: 4.1 inches
- Screen Resolution: 440 x 240
- Digital Media Format: WMA, MP3, MP4, MP5, DVD-R/RW (playback capability)
- OSD Language: English
- Connectivity Technology: Bluetooth
- Output Power: 60 Watts
- Speaker Impedance: 4 - 8 ohm
- SNR (Signal-to-Noise Ratio): 65 dB
- Frequency Response: 20Hz - 20KHz
- FM Frequency Range: 87.5 MHz - 108 MHz
- AM Frequency Range: 522 KHz - 1620 KHz
- FM Sensitivity: 25 dB
- FM Selectivity: 60 dB
- FM Stereo Separation: 35 dB
- Special Features: Bluetooth, Charger, FM Transmitter, Rear View Camera Support, Portable
- Control Method: Remote, Button
- Item Weight: 40 Grams (unit only, packaging weight 0.764 kg)
- Manufacturer Part Number: SDM-4022D+4LEDR192
- UPC: 619988611100
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer directly. Keep your purchase receipt as proof of purchase.