Zomolither 2900 OS
Zomolither Car Stereo User Manual
For Honda CRV 2007-2011 Car MP5 Player (Model: 2900 OS)
1. Introduction
Thank you for choosing the Zomolither Car Stereo. This 9-inch touch screen MP5 player is designed specifically for Honda CRV models from 2007 to 2011, offering a seamless upgrade to your vehicle's infotainment system. It features Wireless Apple CarPlay, Android Auto, Mirror Link, Bluetooth connectivity, FM radio, and supports a backup camera and steering wheel controls. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting to ensure optimal performance and user satisfaction.

Figure 1.1: Zomolither Car Stereo Main Unit
2. Safety Information
- Read all instructions carefully before installation and operation.
- Professional installation is recommended to avoid damage to the unit or vehicle.
- Do not operate the device in a manner that distracts you from driving. Always prioritize road safety.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- Do not expose the unit to extreme temperatures, moisture, or direct sunlight for prolonged periods.
- Disconnect the vehicle's battery before beginning any electrical work.
3. Setup and Installation
This section guides you through the necessary steps to install your Zomolither Car Stereo. It is designed for a direct fit in Honda CRV 2007-2011 models.
3.1 Package Contents
Before starting, verify that all components are present in the package:
- 9-inch Car MP5 Player Unit
- Power Cables (x2)
- AUX Wire Harness
- Reversing Camera Cable
- USB Extend Cables (x2)
- 12LED Rear Camera
- External Microphone
- Installation Tool
- Screws & Bracket
- User Manual (this document)

Figure 3.1: Included Components
3.2 Wiring Connections
Refer to the wiring diagram below and the provided cables for correct connections. Ensure all connections are firm and insulated.

Figure 3.2: Rear Panel Interface Definition
- Power Connection: Connect the main power harness to the corresponding ports on the car stereo and your vehicle's wiring. Ensure constant power (B+), accessory power (ACC), and ground (GND) are correctly matched.
- Speaker Connections: Connect the speaker wires (Front Left/Right, Rear Left/Right) to your vehicle's speaker system.
- Backup Camera Connection:
The included backup camera requires specific wiring for proper function. Connect the yellow RCA video cable from the camera to the 'VIDEO IN 2 (Yellow)' port on the stereo. The red wire from the camera's power cable should connect to the positive pole of your car's reversing light, and the black wire to the negative pole (ground). Additionally, connect the 'BACK' line (usually a pink or brown wire) from the stereo's main harness to the positive pole of the reversing light to trigger the camera display when reversing.Video 3.1: How to connect the Backup Camera. This video demonstrates the wiring process for the backup camera, including connecting the video signal and power lines to the car stereo and the vehicle's reversing light circuit.
- Steering Wheel Control (SWC): Connect the SWC wires from the stereo harness to your vehicle's steering wheel control wires. Configuration may be required in the stereo's settings menu (see Section 4.6).
- USB Inputs: Connect the dual USB extension cables to the rear USB ports on the stereo. Route these cables to an accessible location in your vehicle for connecting USB drives or smartphones.
- External Microphone: Plug the external microphone into the dedicated MIC input for improved call quality.
3.3 Physical Installation
Once wiring is complete, carefully mount the car stereo into your Honda CRV's dashboard opening. The unit is designed for a precise fit.

Figure 3.3: Installation Fit in Honda CRV Dashboard
4. Operating Instructions
This section details the primary functions and features of your Zomolither Car Stereo.
4.1 Power On/Off
Press the power button (usually located on the front panel or a dedicated button on the side) to turn the unit on or off. The unit will display a welcome screen upon startup.
4.2 Radio Operation
From the main menu, select the 'Radio' icon to access the FM tuner. You can manually tune frequencies, use the 'AS' (Auto Scan) function to find and save stations, or select from preset stations (P1-P6).

Figure 4.1: FM Radio Interface
4.3 Bluetooth Connectivity
Pair your smartphone via Bluetooth for hands-free calling and audio streaming. Navigate to the 'Bluetooth' menu, enable Bluetooth on your phone, and search for the device named 'CAR-BT-8D70'. The default PIN code is '0000'. Once paired, you can make/receive calls and play music wirelessly.

Figure 4.2: Bluetooth Interface
4.4 Wireless Apple CarPlay & Android Auto
This unit supports both Wireless Apple CarPlay and Android Auto. Simply connect your compatible smartphone via Bluetooth or a USB cable. Once connected, the stereo screen will mirror your phone's interface, allowing access to navigation, music, messages, and voice assistants (Siri/Google Assistant).

Figure 4.3: Wireless CarPlay & Android Auto
4.5 Mirror Link
The Mirror Link function allows you to display your smartphone's screen directly onto the car stereo's 9-inch HD touchscreen via a USB cable. This is compatible with both Android and iOS devices.

Figure 4.4: Mirror Link Functionality
4.6 Steering Wheel Control (SWC) Learning
To use your vehicle's steering wheel controls with the stereo, you may need to configure them in the settings menu. Go to 'Setup' and look for 'Steering Wheel Control' or 'SWC Learning'. Follow the on-screen prompts to assign functions to each button.

Figure 4.5: Steering Wheel Control Setup
4.7 Backup Camera Display
When the vehicle is shifted into reverse, the stereo will automatically display the feed from the connected backup camera, providing a wide-angle view with parking guidelines for safer maneuvering.

Figure 4.6: Backup Camera View
4.8 EQ Settings
Customize your audio experience using the built-in Equalizer (EQ) settings. Access the EQ menu to select from various preset styles (e.g., Rock, Pop, Jazz, Classic) or manually adjust frequency bands to suit your preferences.

Figure 4.7: EQ Settings Interface
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the screen and exterior of the unit. For stubborn smudges, a slightly damp cloth with a mild, non-abrasive cleaner can be used, but ensure no liquid enters the unit. Do not use harsh chemicals or abrasive materials.
- Software Updates: Periodically check the manufacturer's website for any available software or firmware updates. Updates can improve performance, add new features, or fix bugs. Follow the provided instructions carefully when performing updates.
- Environmental Care: Avoid exposing the unit to extreme temperatures, direct sunlight for extended periods, or high humidity, as these can affect its lifespan and performance.
6. Troubleshooting
If you encounter issues with your Zomolither Car Stereo, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Incorrect power wiring, blown fuse, vehicle battery issue. | Check power (B+, ACC) and ground (GND) connections. Inspect vehicle fuses. Ensure battery is charged. |
| No sound from speakers | Incorrect speaker wiring, volume too low, mute enabled, damaged speakers. | Verify speaker connections. Increase volume. Check if mute is active. Test with different audio sources. |
| Bluetooth/CarPlay/Android Auto not connecting | Incorrect pairing, Bluetooth/Wi-Fi off on phone, incompatible phone, faulty USB cable. | Ensure Bluetooth is enabled on both devices. Re-pair the devices. Try a different USB cable (for wired connections). Restart both phone and stereo. |
| Backup camera not displaying | Incorrect camera wiring, 'BACK' trigger wire not connected, faulty camera. | Check video input (RCA) and power connections for the camera. Ensure the 'BACK' trigger wire is correctly connected to the reversing light. |
| Steering wheel controls not working | Incorrect SWC wiring, not configured in settings. | Verify SWC wiring. Perform SWC learning in the stereo's settings menu (Section 4.6). |
| Touchscreen unresponsive or inaccurate | Software glitch, physical damage, dirt on screen. | Restart the unit. Clean the screen. If the issue persists, contact support. |
If the problem persists after trying these solutions, please contact Zomolither customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| System | 2900 OS (NOT Android OS) |
| Screen Size | 9 inches |
| Screen Resolution | 1024*600 |
| Power Output | 4*45W (Max 180 Watts) |
| Bluetooth Version | 4.2 |
| FM Radio Frequency | 87.5-108.0MHZ (18 preset stations) |
| Connectivity | USB, Bluetooth |
| Special Features | Touchscreen, Wireless Apple CarPlay, Android Auto, Mirror Link, FM Tuner, Hands-Free Calling, Backup Camera Input, Steering Wheel Control, EQ Settings, Dual USB Input |
| Compatible Devices | Smartphone |
| Audio Output Mode | Stereo |
| Item Weight | 2.75 pounds |
| Package Dimensions | 10.35 x 6.73 x 4.13 inches |
8. Warranty and Support
Zomolither offers comprehensive support for your car stereo:
- 12-Month Replacement: The product is covered by a 12-month replacement policy from the date of purchase for manufacturing defects.
- 365 Days Lifetime Technical Support: Zomolither provides lifetime technical support for the product.
For any questions, technical assistance, or warranty claims, please contact us:
Email: Zomolither@126.com
Please provide your product model and purchase details when contacting support to ensure a swift resolution.
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