1. Introduction
This instruction manual provides comprehensive guidance for the installation, operation, and maintenance of your Ezonetronics Double Din Car Stereo, model RM-CW9301. This unit features a 7-inch digital TFT touch screen, Bluetooth connectivity, USB and SD card support, MP5 video playback, and Mirror Link functionality. Please read this manual thoroughly before use to ensure proper operation and to maximize your enjoyment of the product.

Image 1.1: Ezonetronics Double Din Car Stereo unit with included wiring harness, remote control, and a smartphone demonstrating Mirror Link capability.
2. Setup
2.1. Installation
The Ezonetronics RM-CW9301 is designed for universal car installation. Due to the complexity of car audio systems, professional installation is highly recommended. Ensure your vehicle's dashboard can accommodate a double din unit (7.01 x 4.05 x 2.48 inches). A specific dash kit/fascia kit and a wiring harness adapter may be required for your vehicle model to ensure proper fit and electrical connection.
- Wiring: Connect the universal wire harness to your car's electrical system. If your car's factory plug does not match, a wiring harness adapter specific to your vehicle is necessary.
- Mounting: Secure the unit in the dashboard using appropriate mounting hardware (not included).
- Antenna: Connect the FM antenna.
- Optional Connections: Connect external devices such as a rearview camera (not included) or subwoofer.
2.2. Initial Power On and Basic Settings
After installation, turn on your vehicle's ignition. The unit should power on automatically. If not, check the wiring and fuses. Upon first use, you may need to configure basic settings.
- Language Setting: Navigate to the 'Setting' menu to select your preferred system language. The unit supports multiple languages including English, Spanish, Russian, German, Polish, Turkish, and Hebrew.
- FM Frequency Setting: Ensure the FM frequency range is set correctly for your region (e.g., Europe).
- Parking Setting: The parking setting is typically set to 'On' to enable video playback only when the parking brake is engaged, as a safety feature.
- Backlight: Adjust backlight settings for optimal visibility.

Image 2.1: The unit's display showing different color lamp modes, indicating customizable interface options.
3. Operating Instructions
3.1. Basic Controls
The unit features a 7-inch digital TFT touch screen for intuitive control. Physical buttons and a rotary knob are also available for common functions like power, volume, and mode selection.
- Power On/Off: Press the O/M button to turn the unit on or off.
- Volume Control: Use the rotary knob to adjust the volume.
- Mode Selection: Press the MODE button to cycle through different sources (FM, Bluetooth, USB, SD, AUX).
- Home Screen: Tap the home icon on the top right of the screen to return to the main menu.
3.2. Radio Tuner
The unit includes an FM radio tuner with automatic memory store function for up to 18 broadcasting stations. It also supports AM Radio with 12 stations.
- Scanning: Use the 'SCAN' function to automatically search and save available stations.
- Manual Tuning: Adjust frequencies manually using the on-screen controls.
- Stereo/Mono: Toggle between stereo and mono reception for FM.
3.3. Bluetooth Function
Connect your smartphone or other Bluetooth-enabled devices for hands-free calling and wireless music streaming.
- Pairing: Enable Bluetooth on your device and search for the car stereo. Select the unit from the list and confirm pairing.
- Hands-Free Calling: Make and receive calls directly from the unit's touch screen. A built-in voice microphone is located on the control panel.
- Music Streaming: Play audio from your phone's music apps (e.g., Spotify, Pandora) wirelessly through the car stereo.

Image 3.1: The unit's display showing the Bluetooth interface during a phone call, highlighting hands-free communication.
3.4. Mirror Link Play
Mirror Link allows you to project your phone's screen content onto the car stereo display. This feature is for viewing purposes only; the stereo cannot operate your phone directly.
- Connection: Connect your smartphone to the unit via USB.
- Enable USB Debugging: On your Android phone, enable "Developer Options" and then "USB Debugging" for Mirror Link to function.
- Usage: Once connected, your phone's screen will be mirrored on the stereo, allowing you to view navigation, videos, or other apps.
Video 3.1: Demonstration of the Mirror Link feature, showing a smartphone's screen being projected onto the Ezonetronics car stereo display.
3.5. Media Playback (USB, SD, MP5)
The unit supports various media formats for audio and video playback via USB and SD card.
- USB 2.0 Port: Insert a USB drive containing MP3/WMA/WAV/MKV/FLAC/OGG/APE audio files or 1080P video files.
- TF Card Slot: Insert a TF (Micro SD) card (up to 32GB) with compatible media files.
- File Navigation: Use the 'Explorer' function on the main menu to browse files on your USB drive or SD card.

Image 3.2: A collage demonstrating key features: USB charging a phone, AUX-IN connection, HD video playback (gorilla image), and Bluetooth phone call interface.
3.6. Audio Settings
Customize your audio experience using the built-in equalizer and balance/fader controls.
- Equalizer: Access the 'Audio Setting' menu to adjust bass, treble, and other frequency bands. Preset equalizer modes (e.g., Rock, Pop, Classic) are available, along with a customizable 'User' mode.
- Balance/Fader: Adjust the audio output balance between front/rear and left/right speakers.
- Loudness: Toggle the 'LOUD' function for enhanced bass and treble at low volumes.
3.7. Rearview Camera Function
The unit supports rearview camera input. When a compatible camera is connected and the vehicle is in reverse, the display will automatically switch to the camera feed.
- Connection: Connect the rearview camera (not included) to the AV-IN input.
- Automatic Switching: The unit is designed to automatically display the camera feed when the car is put into reverse.

Image 3.3: The car stereo display showing a rearview camera feed, illustrating the parking assist system. A separate rearview camera is required.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your car stereo.
- Cleaning the Screen: Use a soft, lint-free cloth to gently wipe the touch screen. Avoid abrasive cleaners or solvents that could damage the display.
- General Cleaning: Keep the unit free from dust and debris. Use a soft brush or compressed air to clean around buttons and ports.
- Temperature: Avoid exposing the unit to extreme temperatures, which can affect its performance and lifespan.
5. Troubleshooting
If you encounter issues with your Ezonetronics car stereo, refer to the following common troubleshooting steps:
- No Power/Display:
- Check all wiring connections to ensure they are secure.
- Verify that the vehicle's fuses related to the car stereo are intact and not blown.
- Ensure the ignition is on and the unit is receiving power.
- Screen Malfunction (e.g., random colors, no display):
- This can indicate an internal hardware issue. If basic power checks do not resolve the problem, contact customer support.
- Bluetooth Disconnection/Issues:
- Ensure your phone's Bluetooth is enabled and discoverable.
- Delete the stereo from your phone's paired devices list and re-pair.
- Avoid charging your phone via USB while using Bluetooth, as some devices may experience interference.
- No Sound/Distorted Audio:
- Check speaker connections and ensure they are correctly wired.
- Verify audio settings (volume, balance, fader, equalizer) are configured appropriately.
- If using an external amplifier or subwoofer, check its power and connections.
- Mirror Link Not Working:
- Ensure USB debugging is enabled in your phone's developer options.
- Try a different USB cable.
- Some phone models or operating system versions may have compatibility limitations.
If these steps do not resolve the issue, please contact Ezonetronics customer support for further assistance.
6. Specifications
| Feature | Specification |
|---|---|
| Model Name | RM-CW9301 |
| Display Size | 7 inches |
| Resolution | 800 x 480 |
| Output Power | 45W x 4 Max |
| FM Range | 87.5MHz-108.00MHz (Europe) |
| Supported Audio Formats | MP3/WMA/WAV/MKV/FLAC/OGG/APE |
| Video Format | 1080P |
| Connectivity | Bluetooth, USB, SD Card, AUX IN |
| Special Features | Touch Screen, Mirror Link, Rearview Camera Input |
| Product Dimensions | 7.01 x 4.05 x 2.48 inches |
| Item Weight | 1.92 pounds |
| Voltage | 12V |

Image 6.1: Detailed dimensions of the Ezonetronics Double Din Car Stereo unit.
7. Warranty and Support
Ezonetronics is committed to product quality and customer satisfaction. In the event of a product defect or malfunction, please contact Ezonetronics customer support. As noted in customer feedback, the company has provided replacements for faulty units, demonstrating a commitment to resolving product issues.
For technical assistance, warranty claims, or general inquiries, please refer to the contact information provided with your product packaging or visit the official Ezonetronics website.





