Introduction
Welcome to your new Hieha Car Stereo Double Din Radio. This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your device. Please read this manual thoroughly before using the product to ensure proper function and a safe driving experience. Keep this manual for future reference.
Safety Information
To prevent injury or damage to the device, observe the following safety precautions:
- Professional installation is recommended for optimal performance and safety.
- Do not operate the device in a way that distracts you from driving. Always prioritize road safety.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- If any abnormal conditions occur (e.g., smoke, strange odors, unusual sounds), immediately turn off the vehicle and disconnect the power supply. Contact customer support for assistance.
Package Contents
Verify that all items are present in the package:
- Hieha Car Stereo Unit
- User Manual
- Mounting Bracket Set
- Wire Harness A
- Wire Harness B
- Camera Wire A
- Rear-view Camera
- Camera Wire B
Setup & Installation
Wiring Diagram
Refer to the detailed wiring diagram below for proper connection of the car stereo to your vehicle's electrical system. Incorrect wiring can cause damage to the unit or vehicle.
- Red (ACC): Connect to the vehicle's accessory power, which is live when the ignition is on.
- Yellow (B+): Connect to the vehicle's constant 12V power supply.
- Black (GND): Connect to the vehicle's chassis ground.
- Orange (ILL): Connect to the vehicle's illumination wire for dimming control.
- Brown (KEY): Connect to the vehicle's steering wheel control wire.
- Pink (PARKING): Connect to the parking brake signal wire. This connection is required for video playback safety.
- Purple/White (REVERSE): Connect to the vehicle's reverse light signal for automatic backup camera display.
- Speaker Wires: Connect the corresponding speaker wires (Green, Green/Black, White, White/Black, Gray, Gray/Black, Purple, Purple/Black) to your vehicle's speakers.
- Video Input/Output: Connect external video sources or displays using the RCA video cables.
- Audio Output: Connect external amplifiers or subwoofers using the RCA audio cables.
Mounting the Unit
Use the provided mounting brackets to secure the car stereo into your vehicle's double din opening. Ensure the unit is firmly in place to prevent movement during driving.
Backup Camera Installation
Connect the rear-view camera's video cable to the 'Reversing video input' on the stereo. Connect the camera's power wire to the vehicle's reverse light power supply and its ground wire to the vehicle's chassis ground. This setup ensures the camera activates automatically when the vehicle is shifted into reverse.
Operating Instructions
Basic Functions
- Power On/Off: Press the power button to turn the unit on or off.
- Volume Control: Adjust the volume using the on-screen controls or steering wheel controls.
- Source Selection: Tap the 'Home' icon or swipe to select different audio/video sources (Radio, Bluetooth, USB, AUX, CarPlay/Android Auto).
Bluetooth 5.3 Connectivity
Pair your smartphone with the car stereo via Bluetooth for hands-free calling and wireless audio streaming. Navigate to the Bluetooth menu on the stereo, enable Bluetooth on your phone, and select 'Hieha' from the available devices to pair.
Apple CarPlay & Android Auto
Connect your iPhone or Android smartphone via a USB cable to enable Apple CarPlay or Android Auto. This allows you to access navigation, make calls, send messages, and play music directly from your phone's interface displayed on the stereo screen.
Mirror Link
Use the Mirror Link function to display your smartphone's screen directly onto the car stereo. Connect your phone via USB and follow the on-screen prompts to activate screen mirroring. This feature supports both Android Auto and Apple CarPlay for extended functionality.
Voice Assistant
Activate the voice assistant feature to control the stereo and your connected smartphone using voice commands. This enhances safety by allowing you to keep your hands on the wheel and eyes on the road.
FM/AM Radio & DSP Control
Tune into your favorite FM/AM radio stations. The Digital Sound Processor (DSP) allows for fine-tuning of audio settings, including equalizer presets and tone controls, to customize your listening experience.
Media Playback (USB/SD/AUX)
Connect USB drives or SD cards to play audio and video files. Use the AUX input for connecting other audio devices.
Steering Wheel Control (SWC)
If your vehicle supports it, connect the steering wheel control wires to integrate your existing steering wheel buttons with the stereo for convenient operation.
Rear View Backup Camera
The connected backup camera automatically displays a live feed on the stereo screen when the vehicle is put into reverse. This feature includes night vision and a 170° viewing angle for enhanced safety and convenience.
Maintenance
- Cleaning the Screen: Use a soft, dry, lint-free cloth to gently wipe the touchscreen. Avoid abrasive cleaners or solvents.
- General Care: Keep the unit free from dust and debris. Ensure proper ventilation around the unit to prevent overheating.
Troubleshooting
If you encounter issues with your Hieha Car Stereo, refer to the following common problems and solutions:
- No Power: Check all power connections (ACC, B+, GND) and ensure they are securely connected. Verify that the vehicle's fuses related to the stereo are not blown.
- Screen Unresponsive: Try resetting the unit by pressing the 'RES' button (if available) or by temporarily disconnecting the power supply.
- Bluetooth Not Connecting: Ensure Bluetooth is enabled on both the stereo and your smartphone. Delete previous pairings and attempt to re-pair.
- Apple CarPlay/Android Auto Issues: Use an original or certified USB cable. Ensure your phone's operating system is up to date. Check the stereo's settings for CarPlay/Android Auto activation.
- Poor Sound Quality: Check speaker wiring for correct polarity and secure connections. Adjust the DSP settings (equalizer, bass, treble) to optimize audio output.
- Backup Camera Not Displaying: Verify the camera's video cable is correctly connected to the stereo's 'Reversing video input'. Ensure the camera's power and ground wires are properly connected and receiving power when in reverse.
Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 7 x 2.59 x 9.93 inches |
| Item Weight | 2.72 pounds |
| Item Model Number | CP28 |
| Connectivity Technology | Bluetooth, USB |
| Controller Type | Android, iOS |
| Special Feature | Touchscreen |
| Compatible Devices | Speaker, Smartphone |
| Connector Type | 3.5mm Jack, USB |
| Audio Encoding | Stereo |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 4.0 |
| Video Encoding | H.264, H.265/HEVC, MPEG-4 |
Warranty & Support
Hieha offers the following support for your product:
- 30-day Money-Back Guarantee
- 24-months Replacement Warranty
- Life-time Technical Support
For technical assistance or warranty claims, please contact Hieha customer service through the retailer where the product was purchased or visit the official Hieha website for contact information.