Car Solutions CarPlay and Android Auto Instruction Manual
This manual provides detailed instructions for installing and operating the Car Solutions interface for Mercedes-Benz vehicles equipped with NTG 4.5 and NTG 4.7 infotainment systems, enabling Apple CarPlay and Android Auto functionality.
Main Specifications
| Specification | Details |
|---|---|
| Input Voltage | 12~16V DC |
| Rated Current | 2A |
| Rated Power | 24W |
| Material | Housing aluminum |
| Connection | Wireless, USB |
| Control | Original car knob control, voice control |
| Working Temperature | -20 ~ 80 degrees Celsius |
Note on Siri/Google Assistant: For optimal performance of Siri or "OK Google," the vehicle's original microphone is utilized. If the Audi car lacks a microphone, these functions may not be available. The sound source for CarPlay and Android Auto uses the Aux-in path. For calls while using Android Auto, ensure the car's Bluetooth is connected first. Before installation, verify that the power cable pin configuration matches the original car cable to prevent issues.
Components
Included Components:
- Main Harness
- LVDS Cable
- AV,USB Cable
- ANTENNA
Optional Parts:
- USB To AUX Module
Body Connector Specifications
The system features several connection ports on its rear panel: LVDS, HDMI IN (supports 720P), USB/VIDEO, and POWER/CAN.
POWER / CAN Connector (CAN-GPBENZ1901-K2)
A 24-pin connector with the following pin assignments:
| PIN | Function | PIN | Function |
|---|---|---|---|
| 1 | USB1_flag | 13 | HWCF2_IN_CTL |
| 2 | IR IN | 14 | BT_RF_C |
| 3 | CAN 3 HIGH | 15 | CAN 3 LOW |
| 4 | CAN_2_HIGH | 16 | CAN 2 LOW |
| 5 | CAN_1_HIGH | 17 | CAN_1_LOW |
| 6 | GND | 18 | GND |
| 7 | MIC_IN_N_Car | 19 | MIC_N |
| 8 | MIC_IN_P_Car | 20 | MIC_P |
| 9 | A_R_AMI | 21 | A_L_AMI |
| 10 | A LAMI | 22 | A_R_AUX_CAR |
| 11 | A_L_AUX_CAR | 23 | GROUND |
| 12 | Audio_GND | 24 | BATTERY POWER INPUT |
AV CABLE
The AV cable has the following pin assignments:
| PIN | Function | PIN | Function |
|---|---|---|---|
| 1 | CVBS_GROUND | 9 | FRONT_CAM_VIDEO_INPUT |
| 2 | REVERSE_CAM_VIDEO_INPUT | 10 | FRONT_CAM_VIDEO_INPUT |
| 3 | 11 | ||
| 4 | GROUND_SHIELD | 12 | REVERSE_12V_INPUT |
| 5 | USB_GND | 13 | REAR_12V_POWER_OUT |
| 6 | DATA + | 14 | |
| 7 | DATA - | 15 | GROUND |
| 8 | 5V POWER | 16 | 12V(ACC)_OUT |
The LVDS cable is used for video signal transmission.
Car Compatibility Chart
This chart lists compatible Mercedes-Benz models, their specific production years, associated infotainment systems (COMAND APS NTG 4.5 and AUDIO 20), and screen sizes.
| Car Models | Specific Models | Production Year | Specific Models | Screen Size |
|---|---|---|---|---|
| A-Class | W176 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| CLA-Class | C117 | 2014~2015 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| B-Class | W246 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| C-Class | W204 | 2011~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| SLK-Class | R172 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
| E-Class | W212 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| CLS-Class | W218 | 2011~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
| SL-Class | R231 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
| GLK-Class | X253 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 5.8 inch / 7 inch |
| ML-Class | W166 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
| G-Class | X166 | 2012~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
| GL-Class | W447 | 2013~2014 | COMAND APS NTG 4.5 and AUDIO 20 | 7 inch |
Images show examples of Mercedes-Benz NTG4.5 infotainment systems with 7-inch and 5.8-inch screens.
Full Installation Diagram
This section provides a visual guide for the installation process. It is recommended to use the genuine cable provided by the phone manufacturer and avoid adapter types or multi-cables.
Phone Compatibility: Supports Apple CarPlay for iPhone and Android Auto for Google Android devices.
The diagram illustrates the connection of the Car Solutions unit to the vehicle's head unit. Key connections include LVDS, HDMI IN, USB/VIDEO, and CAN. The AV cable is shown with connections for reverse cameras (front and rear) and power. A note indicates to "Move optical cable to Provide quadlock harness." The NTG4.5 Aux Pin specification is also detailed.
DIP Switch Settings
The device features DIP switches for configuration. The diagram shows the ON (⬆️) and OFF (⬇️) positions for switches 1 through 8.
DIP Switch Functions:
| PIN | ON (⬆️) | OFF (⬇️) |
|---|---|---|
| 1 | External Microphone | OEM Microphone |
| 2 | Used Default "OFF(⬇️)" | |
| 3 | ||
| 4 | Selection of car mode | |
| 5 | ON (⬆️) <5.8 Inch 400 X 240> | |
| 6 | ON (⬆️) <7 Inch 800 X 480> | |
| 7 | Used Default "OFF(⬇️)" | |
| 8 | Used Default "ON (⬆️)" |
A compatibility table cross-references Car Models, Code Names, Screen Sizes, and Production Years with specific DIP switch settings (No.3, No.4, No.5, No.6).
| Car Model | Code Name | Screen Size | Year | No.3 | No.4 | No.5 | No.6 |
|---|---|---|---|---|---|---|---|
| A-Class | W176 | 5.8 inch | 2011~2014 | ON (⬆️) | OFF (⬇️) | OFF (⬇️) | |
| B-Class | W246 | 5.8 inch | ON (⬆️) | OFF (⬇️) | OFF (⬇️) | ||
| C-Class | W204 | 5.8 inch | ON (⬆️) | OFF (⬇️) | OFF (⬇️) | ||
| E-Class | W212 | 5.8 inch | ON (⬆️) | OFF (⬇️) | OFF (⬇️) | ||
| GLK-Class | X204 | 5.8 inch | |||||
| E-Class | W212 | 7 inch | 2012~2014 | ON (⬆️) | |||
| CLS-Class | W218 | 7 inch | ON (⬆️) | ||||
| GLK-Class | X204 | 7 inch | ON (⬆️) | ||||
| ML-Class | W166 | 7 inch | ON (⬆️) | ||||
| G-Class | W463 | 7 inch | ON (⬆️) | ||||
| GL-Class | X166 | 7 inch | |||||
| SLK-Class | R172 | 7 inch |
Activation by Original Buttons
The system can be activated and controlled using the vehicle's original steering wheel buttons and NTG4.5 OEM controls.
Steering Wheel Button Functions:
| Button | Function | Operation | Remarks |
|---|---|---|---|
| 1 | Changing Modes | Press the button 3 seconds | Order: OEM ➡️ Car Play / Return to OEM mode |
| Press the button short time | Return to the OEM mode in any modes. | ||
| 2 | "Siri" / "Google Assistant" | Press the button 3 seconds | Apple Car Play Function / Google Android Auto |
| 3 | Answer Phone Call | Press the button | Apple Car Play Function / Google Android Auto |
| 4 | Reset | Press the button 5 seconds | Apple Car Play Function / Google Android Auto |
| 5 | Go back | Press the button | Apple Car Play Function / Google Android Auto |
| 2 (Dial) | Changing Modes | Turn the dial / Press the dial | Order: OEM ➡️ Car Play / Return to OEM mode |
Screenshots display the Apple CarPlay and Android Auto interfaces, showcasing their respective layouts and app icons.
User Interface
The system supports various mirroring and connectivity options:
- Airplay (Apple iPhone Mirroring) via Wi-Fi: Connect by turning on Wi-Fi on the iPhone, selecting "Carplayxxxxxx" (Wi-Fi name may vary), and then selecting "Air play" in the iPhone Control Center. The iPhone screen will be mirrored onto the car screen.
- WireAuto (Android Auto) via Cable: Connect via USB cable for Android Auto functionality.
- Apple CarPlay Wireless, Cable: Supports both wireless and wired connections for Apple CarPlay.
- WirelessDev Setting (Bluetooth): Options for Bluetooth settings, including connecting mobile devices, viewing paired devices, and resetting Bluetooth. Primarily for Apple iPhone.
- USB Player (Media, Music): Play media and music files from a USB drive.
- HDMI IN PUT: Input via HDMI.
The main user interface features icons for WirelessDev, Airplay, WireAuto, Autolink, USB, Camera, HDMI, and Setup. Detailed setup options are available, including language, display, audio, and reverse camera settings.
Screenshots also show Android Mirroring via cable and the setup menu, which includes options for Language, Display, Audio, Reverse, Right Drive, Front Camera, and system information.
Settings & System Configuration
The system offers extensive settings for customization:
Language & Display:
Supports multiple languages including English, Italian, Spanish, Turkish, and Chinese. Display settings include Brightness, Contrast, Chromaticity, and Saturation.
Audio Settings:
Adjustments for Volume (0-18), EQ, Loudness (ON/OFF), Microphone settings (Volume, OP, PGA, Delay), and AEC quality. A note indicates that sound frequencies can be adjusted for optimal listening.
Reverse Settings:
Configuration for Reverse Camera (Original/Aftermarket), Reverse Line Detect (ON/OFF), Reverse Display Track (ON/OFF), Reverse Display Radar (ON/OFF), Front View Time (0-10 seconds), and Reverse Full Screen (ON/OFF).
A note explains that when shifting gears from R to D or P to D, the system activates automatically based on the selected time.
Other System Settings:
- Right Drive: ON/OFF toggle (ON for Left Steering Wheel, OFF for Right Steering Wheel).
- Camera Mirror: ON/OFF toggle.
- Switch L/R Key to D/U Key: ON/OFF toggle.
- Wheel key swap: Options for "No swap", "Swap", "Invalid".
- Carplay Left Scrap: Adjustable setting from 0 to 10.
Software Update
Instructions for updating the system software, MCU, logo image, and CarPlay icon are provided.
System Update: Copy the file "ISPBOOOT.BIN" to the root directory of a USB storage device. Plug the USB into the CarPlay box. Select "System update" or press the BACK button for 5 seconds to restart and update automatically. Important: Do not power off the box during the update.
MCU Update: Copy the file "Upgrade.bin" to the root directory of a USB storage device. Plug the USB into the CarPlay box. Select "MCU update". Important: Do not power off the box during the update.
Logo Image Update: The logo image file format is "no logo.bmp" with a size of 800 x 480 pixels. Copy this file to the root directory of a USB storage device and plug it into the CarPlay box USB port.
Carplay Icon Update: The CarPlay icon image file format is "no cp_back.png" with a size of 250 x 250 pixels. Copy this file to the root directory of a USB storage device and plug it into the CarPlay box USB port.
The download URL for update files is: http://indiwork.co.kr/manual-carplayandroid-auto/
