1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your FelloStar Wireless Carplay Box. This intelligent decoder box is designed to upgrade your Mercedes Benz S-Class (W221, W216, CL models from 2005-2013) with NTG3.0 or NTG3.5 systems, enabling seamless integration of Apple CarPlay and Android Auto functionalities.

Figure 1: Wireless Carplay box installed in a Mercedes Benz S-Class dashboard.
2. Product Features
- Wireless Apple CarPlay: Pair via Bluetooth, transfer data via Wi-Fi for a cable-free experience.
- Wired Apple CarPlay: Connect via Lightning cable (also charges your phone).
- Android Auto: Supports both wired and wireless connections for Android phones.
- Android Mirroring-Link: Mirror your Android phone's screen to the car display.
- Airplay Function: Connect with a USB cable to play movies, navigation, and music from your iPhone.
- GPS Navigation: Compatible with popular apps like Google Maps, Waze, Apple Maps, IGO, Sygic, 2GIS, KakaoNavi, NAVER MAP, NAVITIME, T Map, and provides live traffic information.
- Music Streaming: Supports Spotify, Apple Music, Amazon, and other audio apps through the factory PCM media, with lyrics displayed for some applications.
- Voice Control: Activate Siri with "Hey Siri..." for hands-free operation.
- Camera Input: Supports aftermarket front, rear, and 360-degree cameras with dynamic guidance lines.
- USB Media Playback: Play music and videos from a USB flash drive connected to the CarPlay kit's USB port.
- Audio Equalizer (EQ): Adjustable EQ settings to customize audio quality (Pop, Rock, Soft, Standard, etc.).
- OEM Control Integration: Full control using original car buttons, factory knob, and steering wheel controls.
3. Compatibility
This Carplay box is specifically designed for the following Mercedes Benz models:
- Mercedes Benz S-Class W221 W216 CL: 2006-2013
- Compatible with S250, S280, S320, S350, S400, S500, S600, S63, SG5 AMG models.
- Supports original 8-inch screens for both NTG3.0 and NTG3.5 systems.

Figure 2: Compatible Mercedes Benz S-Class models.
4. Package Contents
Please verify that all the following items are included in your package:
- LIMCET Carplay Box
- Wifi Antenna
- LVDS Video Line (x2)
- Power Cable
- Microphone (MIC)

Figure 3: Included accessories.
5. Setup and Installation
Installation of the FelloStar Wireless Carplay Box requires technical knowledge and familiarity with car electronics. Professional installation is highly recommended to avoid damage to your vehicle or the product.
5.1. Component Overview

Figure 4: Carplay box front view with TF slot, dip switches, and antenna.

Figure 5: Carplay box with labeled ports (Power, VGA, TP, MIC, LVDS Out, LVDS In).
5.2. LVDS Connection Types
Ensure you use the correct LVDS video line based on your car's NTG system version:
- NTG 3.0: Uses a 10-PIN LVDS connection.
- NTG 3.5: Uses a 4-PIN LVDS connection.

Figure 6: LVDS connection types for NTG 3.0 and NTG 3.5.
5.3. General Installation Steps (Consult a professional)
- Disconnect Battery: Always disconnect the car battery before starting any electrical work.
- Remove Head Unit/Screen: Carefully remove the car's original head unit or screen to access the wiring.
- Connect Power Cable: Connect the provided power cable to the Carplay box and integrate it with the car's power supply, typically behind the head unit.
- Connect LVDS Cables: Disconnect the original LVDS cable from the screen and connect it to the Carplay box's LVDS IN port. Then, connect one of the provided LVDS video lines from the Carplay box's LVDS OUT port to the car's screen. Ensure correct pin configuration (10-PIN for NTG3.0, 4-PIN for NTG3.5).
- Connect Microphone: Install the external microphone in a suitable location (e.g., near the rearview mirror) and connect it to the MIC port on the Carplay box.
- Connect Wi-Fi Antenna: Attach the Wi-Fi antenna to the designated port on the Carplay box.
- Optional Connections: If installing aftermarket cameras, connect them to the appropriate camera input ports on the Carplay box.
- Secure the Box: Find a secure and discreet location to mount the Carplay box within the dashboard.
- Reconnect Battery: Once all connections are secure, reconnect the car battery.
- Test Functionality: Power on the car and test all Carplay/Android Auto functions.
6. Operating Instructions
Once installed, the FelloStar Carplay Box allows you to seamlessly switch between your car's original system and the Carplay/Android Auto interface.
6.1. Switching Between Systems
The Carplay box typically uses a specific button on your car's original head unit or steering wheel to switch to the Carplay/Android Auto interface. Refer to your installer or the product's specific wiring diagram for the exact trigger.
6.2. Apple CarPlay Operation
For wireless CarPlay, ensure Bluetooth is enabled on your iPhone and pair it with the Carplay box. For wired CarPlay, connect your iPhone via a Lightning cable to the USB port on the Carplay box.

Figure 7: Apple CarPlay interface on car display.
6.3. Android Auto Operation
For wireless Android Auto, ensure Bluetooth is enabled on your Android phone and pair it with the Carplay box. For wired Android Auto, connect your phone via a USB cable to the USB port on the Carplay box.

Figure 8: Android Auto interface on car display.
6.4. Voice Control (Siri)
To activate Siri, press and hold the voice control button on your steering wheel or the designated button for 3 seconds. You can then issue commands like:
- "Hi, Siri"
- "Next song"
- "Open photo"
- "Call Daddy"
- "Navigate to go home"

Figure 9: Siri voice control functionality.
6.5. Navigation and Media
Access your favorite navigation apps like Google Maps, Waze, and Apple Maps directly from the Carplay/Android Auto interface. Enjoy music from Spotify, Apple Music, Amazon, and other compatible apps.

Figure 10: Navigation apps on car display.

Figure 11: Music apps on car display.
6.6. Camera and Parking Sensor Support
The system supports your original car's camera and parking sensors, integrating them into the Carplay/Android Auto display. It also supports factory knob control and steering wheel buttons for seamless operation.

Figure 12: Integrated camera, parking, and control features.
7. User Tips
- Firmware Updates: Check the manufacturer's website periodically for firmware updates to ensure optimal performance and compatibility with the latest phone operating systems.
- Audio Quality: Experiment with the EQ settings to find the best audio balance for your car's sound system and your personal preferences.
- Wireless Connectivity: If experiencing intermittent wireless connection, try restarting both your phone and the car's infotainment system. Ensure your phone's Wi-Fi and Bluetooth are both active.
- Cable Quality: For wired connections, use high-quality USB and Lightning cables to ensure stable data transfer and charging.
- App Management: Customize the app layout on your CarPlay/Android Auto screen through your phone's settings for easier access to frequently used applications.
8. Maintenance
To ensure the longevity and optimal performance of your FelloStar Wireless Carplay Box, follow these maintenance guidelines:
- Keep Dry: Avoid exposing the device to moisture or liquids.
- Temperature Control: Do not expose the device to extreme temperatures.
- Cleanliness: Keep the unit free from dust and debris. Use a soft, dry cloth for cleaning.
- Cable Integrity: Periodically check all connected cables for any signs of wear or damage. Replace damaged cables immediately.
- Software Updates: Regularly check for and install any available software or firmware updates to improve performance and fix potential bugs.
9. Troubleshooting
If you encounter issues with your Carplay box, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No display/Black screen | Loose power or LVDS connection; Incorrect input selected. | Check all cable connections. Ensure the correct video input is selected on your car's screen. Restart the car's infotainment system. |
| CarPlay/Android Auto not connecting wirelessly | Bluetooth/Wi-Fi off on phone; Interference; Incorrect pairing. | Ensure Bluetooth and Wi-Fi are enabled on your phone. Forget and re-pair the device. Try connecting with a wired connection first. |
| No audio or poor audio quality | Incorrect audio source selected; Volume too low; EQ settings. | Ensure your car's AUX input is selected. Adjust volume levels on both the phone and car. Check EQ settings. |
| Voice control (Siri) not responding | Microphone disconnected; Siri disabled on phone; Incorrect activation. | Check microphone connection. Ensure Siri is enabled on your iPhone. Confirm correct activation method (press and hold). |
| Controls (knob/steering wheel) not working | Incorrect wiring; System settings. | Verify all control wires are correctly connected during installation. Check Carplay box settings for control mapping. |
10. Specifications
- Brand: FELLOSTAR
- Origin: Mainland China
- Compatibility: Mercedes Benz S-Class W221 W216 CL (2005-2013) with NTG3.0/NTG3.5 systems
- Connectivity: Wireless (Bluetooth, Wi-Fi) and Wired (USB)
- Supported Features: Apple CarPlay, Android Auto, Airplay, Android Mirroring-Link, GPS Navigation, Music Streaming, Voice Control, Aftermarket Camera Input, USB Media Playback, EQ Adjustment, OEM Button Control.
- High-concerned chemical: None
11. Warranty and Support
All FelloStar products are brand new and shipped directly from the factory. We are committed to providing high-quality products and support.
- Faulty Items: In case you receive a faulty item, please contact us within 3 days after signing the receipt. We will arrange a refund or replacement.
- Returns: Returns within 7 days after receipt are eligible for a refund (excluding shipping freight). Returns within 20 days after receipt can be replaced.
- Repairs: Items can be repaired within 1 year from the purchase date.
- Return Postage: Customers are responsible for the cost of return postage to ship the item back to us. We will cover the cost of sending the repaired or replaced item back to you.
- Prior Notice for Returns: All returns must be confirmed by our after-service staff. We are not liable for any return package without prior notice.
- Non-Defective Returns: A reasonable administrative fee may apply for non-defective returns.
We value our customers and strive to resolve any concerns or frustrations you may have. Please contact us before leaving negative feedback, and we will work to find a solution that meets your requirements and enhances your satisfaction.





