Product Overview
The Hieha CP55 is a 7-inch LCD touchscreen double din car stereo designed for enhanced in-car entertainment and connectivity. It features compatibility with Apple CarPlay and Android Auto, Bluetooth for hands-free calling and audio streaming, AM/FM radio, Mirror Link functionality, and support for a backup camera. The unit also includes an AUX input and Steering Wheel Control (SWC) capabilities.

Image: Hieha Double Din Car Stereo with 7-inch LCD Touch Screen, highlighting CarPlay and Android Auto features.
Setup and Installation
Package Contents
Before beginning installation, verify that all components are present in the package:
- Hieha CP55 Car Stereo Unit
- User Manual
- Wire Harness A/B
- Camera Wire A & B
- Reverse Camera
- Movable Mounting Bracket Set

Image: Hieha CP55 car stereo package contents.
Installation Considerations
The Hieha CP55 is a standard 7-inch double din car radio. It is recommended to confirm the size of your vehicle's center console before purchase. A universal mounting bracket set is included. Professional installation is suggested for optimal performance and to ensure correct wiring. Aftermarket accessories such as dash kits may be required depending on your vehicle's make and model.

Image: Dimensions of the Hieha CP55 car stereo and included installation components.
Backup Camera Connection
The included backup camera connects to the stereo unit. Ensure proper wiring for the camera's power and video signal to enable automatic display when reversing.
Video: Demonstration of connecting the backup camera to the car stereo unit. This video shows the wiring process for the camera and stereo.
Operating Instructions
Apple CarPlay & Android Auto
Connect your compatible smartphone via a certified USB cable to access Apple CarPlay or Android Auto. This allows for navigation, music playback, messaging, and voice assistant features directly on the stereo's display. Select 'Auto Play Mode' on the stereo after connecting.

Image: Apple CarPlay and Android Auto interface on the car stereo.
Mirror Link Functionality
The Mirror Link feature allows you to display your smartphone's screen directly onto the car stereo. This enables viewing of apps and content from your phone on the larger stereo display.

Image: Mirror Link feature displaying a smartphone screen on the car stereo.
Bluetooth Connectivity
Pair your Bluetooth-enabled device with the stereo for hands-free calling and wireless audio streaming. Access your phone's contacts and call history directly from the stereo interface.


Image: Hands-free calling interface via Bluetooth.
AM/FM Radio
Tune into your favorite AM and FM radio stations. The stereo features a digital tuner with station presets for quick access.

Image: AM/FM Radio interface.
Voice Control
Utilize voice commands through Apple CarPlay or Android Auto to control navigation, make calls, play music, and more, keeping your hands on the wheel and eyes on the road.


Image: Voice control functionality for hands-free operation.
Steering Wheel Control (SWC)
The unit supports connection to your vehicle's existing steering wheel controls, allowing you to manage audio functions without taking your hands off the steering wheel. This feature requires proper wiring during installation.


Image: Steering Wheel Control setup interface.
Rear View Camera Display
When properly installed, the rear view camera automatically displays the feed on the stereo screen when the vehicle is shifted into reverse, aiding in parking and maneuvering.

Image: Rear view camera display on the car stereo.
HD Capacitive Touchscreen
The 7-inch HD capacitive touchscreen provides a responsive and intuitive user experience for navigating menus and controlling functions.

Image: Interaction with the HD Capacitive Touchscreen.
Maintenance
To ensure the longevity and optimal performance of your Hieha CP55 car stereo, follow these maintenance guidelines:
- Cleaning the Screen: Use a soft, lint-free cloth to gently wipe the touchscreen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals or abrasive materials.
- General Cleaning: Keep the unit and surrounding area free from dust and debris. Use a soft brush or compressed air to clean vents and crevices.
- Temperature Control: Avoid exposing the unit to extreme temperatures for extended periods, as this can affect performance and lifespan.
- Wiring Inspection: Periodically check all wiring connections to ensure they are secure and free from damage.
Troubleshooting
If you encounter issues with your Hieha CP55 car stereo, consider the following common solutions:
- No Power: Check all power connections and fuses. Ensure the vehicle's ignition is on.
- No Sound: Verify speaker connections. Check volume levels and ensure the mute function is not activated. Confirm audio source selection.
- Touchscreen Unresponsive: Try restarting the unit. Ensure the screen is clean and free from obstructions.
- Bluetooth Pairing Issues: Ensure Bluetooth is enabled on both the stereo and your device. Delete previous pairings and attempt to pair again.
- CarPlay/Android Auto Not Connecting: Use a certified USB cable. Ensure your phone's operating system is up to date. Try restarting both the stereo and your phone.
- Backup Camera Not Displaying: Check the camera's power and video signal connections. Ensure the reverse gear is engaged.
If problems persist after attempting these steps, please contact customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Hieha |
| Model Number | CP55 |
| Connectivity Technology | Auxiliary, Bluetooth, USB |
| Controller Type | Android |
| Special Feature | Touchscreen |
| Compatible Devices | Speaker, Smartphone |
| Connector Type | 3.5mm Jack, USB |
| Audio Encoding | Stereo |
| Audio Output Mode | Stereo |
| Number of Channels | 4 |
| Supported Internet Services | Itunes, Maps |
| Control Method | Voice |
| Wireless Technology | Bluetooth |
| Format | WMA |
| Working Voltage | DC12V (Cannot be used on cars with voltage over 14V) |
Warranty and Support
For warranty information, technical support, or any inquiries regarding your Hieha CP55 Double Din Car Stereo, please refer to the contact details provided in your product packaging or visit the official Hieha website. Keep your purchase receipt as proof of purchase for warranty claims.