Gerllish 2DIN Android 15 Car Multimedia Player User Guide

Introduction

Thank you for choosing the Gerllish 2DIN Android 15 Car Multimedia Player. This advanced audio system is designed to enhance your driving experience with features like Wireless CarPlay, Android Auto, a 7-inch display, GPS navigation, Bluetooth 5.0, and comprehensive multimedia capabilities. This user guide provides essential information for installation, operation, and troubleshooting to ensure optimal performance and enjoyment of your new car radio.

Package Contents

Please verify that all items listed below are included in your package:

• Power Cable 1
• Power Cable 2
• GPS Antenna
• Rear Camera Input Cable
• 4G Antenna (for 4G version only)
• RCA Harness
• 4/6 Pin USB Cable
• Radio Antenna
• Canbus Box

Specifications

Installation Guide

Pre-Installation Check

Before installing the product directly into your car, it is highly recommended to test the unit first. Due to potential impacts during transit, the product's functionality may be affected. Testing beforehand can prevent issues and ensure a smooth installation process.

Rear Interface Wiring Diagram

The following diagram details the connections for the rear interface. Ensure all connections are secure and correctly matched to avoid malfunction or damage.

Connector Pin Assignments:

• Area A: Reserved for expansion sockets, not connected.
• Connector B: B1:AMP_POW(M+), B2:GND (RCA FL/FR) (M-), B3:AUXIN_R, B4:AUX OUT_FL, B5:AUXIN_L, B6:AUX OUT_FR, B7:SIMO_DA, B8:GND (AUXIN YAUXIN F), B9:SIMO_DET, B10:GND, B11:SIMO_CKLO, B12:GND, B13:SIMO_RST, B14:NC, B15:VDD_SIMO, B16:NC, B17:CVBS2_IN2, B18:CVBS1_IN1, B19:MIC-, B20:MIC+
• Connector C: C1: TX2, C2: BT ANT, C3: RX2, C4:GND, C5:IR for CMMB, C6:Reverse video signal +, C7:CAM12 OUT, C8:GND, C9:BRAKE, C10:Bluetooth & WiFi antenna
• Connector D: D1: USB2 5V, D2: USB2_DP, D3: GND USB2, D4:USB2_DN, D5: NC, D6: NC
• Connector E: E1:USB1 5V, E2:USB1_DP1, E3:GND USB1, E4:USB1_DN1
• Connector F: F1:GND, F2:NC, F3:AUX2 L, F4:AUX2 R, F5:UART1_RX, F6:UART1_TX, F7:CAN_RXD, F8:CAN_TXD
• Connector G (Power Plug): G1:GND, G2:B+ (to battery +), G3:ACC (to car ACC), G4:ILL (to car headlight +), G5:Reverse Detection (to Reverse Control from rear camera), G6:SWC1 (to steering wheel control 1), G7:SWC2 (to steering wheel control 2), G8:ANT (to active antenna or amplifier +), G9:FR- (to front right speaker -), G10:RL- (to rear left speaker -), G11:FR+ (to front right speaker +), G12:RL+ (to rear left speaker +), G13:FL- (to front left speaker -), G14:RR+ (to rear right speaker +), G15:FL+ (to front left speaker +), G16:RR- (to rear right speaker -)

Important Wiring Notes:

• The unit will turn on normally when both the yellow B+ line and the red ACC line receive a 12V positive power simultaneously.
• The yellow B+ line maintains power to the unit, enabling its memory function.
• There are 8 speaker cables. Each speaker cable must not be grounded, shared, or touch other lines. Incorrect wiring can lead to no sound output, distorted sound, or overheating of the unit.

Rearview Camera Installation

The rearview camera automatically switches to the reversing image when the vehicle is in reverse gear.

Installation Steps:

1. Camera Position: Install the camera at the rear of the car.
2. Camera Power Supply: Connect the camera's power supply to the positive and negative poles of the vehicle's tail light.
3. Video Signal: Connect the camera's video output (yellow RCA cable) to the "VIDEO-IN-2" input on the car radio.
4. Reverse Detection: Connect the pink "Reverse" wire from the car radio's wiring harness to the positive 12V wire of the reverse light.

Important: If a reversing camera is not installed, do not connect the REVERSE/BACK cable to any other wire. Leave it unconnected. Incorrect connection can cause the unit to display improperly or automatically enter reverse mode, leading to malfunction. Disconnect the REVERSE/BACK line immediately if this occurs to restore normal operation.

CANBUS Connection

CANBUS (Controller Area Network Bus) integration allows the car radio to communicate with your vehicle's electronic systems, enabling features like steering wheel controls and displaying car information.

For High-End Models:

For high-end models, ensure the CANBUS module is correctly connected as shown in the diagram.

For Low-End Models:

For low-end models, ensure the CANBUS module is correctly connected as shown in the diagram.

Attention: If the CANBUS box and black buckle are connected simultaneously, it may cause the radio to fail to shut down after the car is turned off.

Operating Instructions

The Gerllish 2DIN Android 15 Car Multimedia Player features an intuitive Android interface. Here's how to use its main functions:

General Interface & Navigation

The main screen provides access to all applications and settings. You can customize the layout and themes.

Google Maps: Access Google Maps from the main screen. You can search for destinations, view traffic, and find nearby points of interest such as restaurants, cafes, gas stations, ATMs, pharmacies, and groceries. The system provides turn-by-turn navigation.

Music & Video Playback

The unit supports various multimedia formats for music (MP3, WMA) and video (MP4, JPEG). You can play media from internal storage, external SD cards, or USB devices.

Equalizer Settings: Adjust audio output with various preset equalizer modes (Jazz, Pop, Classical, Rock, News, Urban) or a custom Normal setting. You can also fine-tune the sound zone to optimize audio for specific seating positions.

Video Playback: Enjoy videos directly on the 7-inch display. The system supports split-screen functionality, allowing you to watch videos while using other applications like navigation.

Radio

Access the Radio application to tune into FM/AM stations. The unit supports RDS for enhanced radio information.

Bluetooth Connectivity

Connect your smartphone via Bluetooth to make hands-free calls and stream audio directly to the car radio.

CarPlay & Android Auto

The unit supports both Wireless CarPlay and Android Auto for seamless smartphone integration.

• Wired Connection: Simply connect your smartphone using a USB data cable. The system will automatically enter the CarPlay or Android Auto interface.
• Wireless Connection: First, enable Bluetooth and Wi-Fi on your mobile phone, then connect to the car radio via Bluetooth. The system will automatically enter the CarPlay or Android Auto interface. Note that the signal is transmitted via Wi-Fi, so it will function normally even if Bluetooth is turned off. If Wi-Fi is turned off, CarPlay/Android Auto will disconnect.

Note: Android Auto may require Google Play services to be available locally and a mobile phone with Android 6.0 or higher.

Car Settings & Air Conditioning

Access various car-specific settings and control your vehicle's air conditioning directly from the unit's display.

Air Conditioning: The unit provides a digital interface to control the air conditioning system, including temperature and airflow direction for both driver and passenger.

Fuel Consumption: Monitor your vehicle's fuel consumption, including instant and average values, driving range, average speed, and driven distance.

GPS Signal Status

View real-time information about GPS signal strength and connected satellites.

Web Browsing

Use the built-in Chrome browser to access the internet.

Split Screen Functionality

The unit supports split-screen mode, allowing you to run two applications simultaneously, such as navigation and music playback.

Boot Animation & Color Themes

Customize your device's boot animation and choose from various color themes to personalize the interface.

Learning Steering Wheel Controls

To configure your steering wheel controls:

1. Press and hold a button on your original car's steering wheel.
2. On the car radio screen, find the button icon that corresponds to the function of the steering wheel button you are holding.
3. Click the icon on the screen to change its color. A successful color change indicates that the learning process is complete.

Troubleshooting

This section addresses common issues and provides solutions.

1) Cannot boot normally

• Wiring Check: Ensure the yellow, red, and black wires are correctly connected. The yellow wire should be connected to the positive pole, the red wire to the key control line, and the black wire to the negative pole. Incorrect or insufficient connections will prevent booting.
• Car Wiring Compatibility: The original car wiring and unit wiring may not match in color. If connected incorrectly, it may not only fail to turn on but also burn out.
• Original Car Plug: The original car plug may not be directly compatible with the new unit. Even if it fits, it might not function correctly or could cause damage.
• Fuse Check: If the 3 main wires are connected correctly but the unit doesn't boot, check if the fuse on the yellow line is broken. If the fuse is intact, twist the yellow and red wires together, turn the key, and press the unit's power button to test.
• Repeated Fuse Burning: If the fuse burns every time it's replaced, it indicates a short circuit in the unit's protection circuit when positive and negative poles are first connected. The unit may require professional repair. If the unit still doesn't boot after checking all wiring and fuses, test it with a 12V battery by twisting the yellow and red wires together to the positive terminal and the black wire to the negative terminal. If it boots, the original car wiring is likely incorrect or problematic. If it still doesn't boot, the unit may be faulty.

2) Automatic shut-down

• Cable Error: If the blue cable (automatic antenna power supply) is connected to the unit's power cable, an automatic shutdown will occur. Follow the correct wiring method.
• Unstable Voltage: Test the unit with a stable 12V-5A power supply. If it stops shutting down, replace your power supply. If it still shuts down, the unit itself has a problem.

3) There is noise

• Low Speaker Power: If the original speaker power is too low, noise will occur when the volume is increased. When replacing speakers or listening to music, avoid excessively high volumes.
• Grounded Speaker Cable: If the speaker cable is grounded, connect the iron speaker cable directly to the unit's speaker cable.

4) Remote control cannot be used

• Test Method: Use your mobile phone camera to check the remote control's infrared light. Press a button on the remote control; if the phone camera shows a light, the remote control is working. If no light is visible, replace the battery.

5) Settings cannot be saved (no memory)

• The yellow and red lines are connected together. They should be separated (yellow to positive, red to key control).
• The yellow and red wires are reversed. Simply swap their positions.

6) Bluetooth not working

• Turn on the unit, search for its Bluetooth name on your mobile phone, and click Connect. After connecting, you should be able to make calls and play music via Bluetooth.

7) The product emits smoke

• Replace the FUSE. If the problem persists, the internal circuit may be burned. After-sales service is required.

8) The sound cannot be adjusted

• Reset the unit or unplug and replug the power cord.
• If the volume knob is broken, it may need to be replaced.

9) Reversing camera does not display

• Wiring: Check for wrong or missing wiring.
• Camera Fault: If the camera's indicator lamp (if present) is not lit when properly wired, the camera may be broken and need replacement.

10) USB devices cannot be played

• Format the USB flash drive to FAT32. Re-download one or two songs and try again. If it still doesn't work, replace the USB flash drive.

11) FM does not receive the radio station

• Antenna Connection: Ensure the antenna plug is fully inserted. Check if the antenna is disconnected or the line is broken.
• Station Search: Use the AS button for automatic station search, or manually search using the 'before' or 'after' buttons.
• If the above steps don't resolve the issue, unplug the antenna plug and try inserting a screwdriver or metal strip into the antenna port as a temporary antenna.

12) No sound right after installation

The unit is tested before shipment. If there's no sound, it's usually a wiring error or a short circuit in the original car speaker wire. To check:

• Verify that the speaker cable is not short-circuited and is properly connected. Reconnect if necessary.
• Check the number of speaker cables. If your original car has only 2 speaker cables and doesn't match the unit's requirements, you may need to re-route the original car line. One speaker should connect to 2 speaker wires; two speakers should have 4 speaker cables available.

13) No sound after a while

Disconnect all speaker cables from the unit (do not remove them). Then, connect an external speaker to the gray and purple wires of the unit's tail line. Connect any group to green and check for sound. If there is sound, it indicates a short circuit in the car's speaker line or a damaged speaker. If there is still no sound, the unit is broken.

User Tips

• Vehicle Compatibility: Always verify the car radio's compatibility with your specific car model and year (e.g., VW Vento 2017, Golf GTI MK5 2008, Gol Trend 2023) and ensure you have the correct stereo harness.
• Wiring Accuracy: Double-check all wiring connections, especially power and speaker cables, to prevent issues like no boot, automatic shutdown, or sound problems.
• USB Device Formatting: If USB devices are not playing, ensure they are formatted to FAT32.

Warranty and Support

Warranty

This product comes with a one-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims.

Additional Resources

For more detailed instructions and diagrams, you may refer to the comprehensive user manual available in PDF format. View User Manual (PDF)

Tips: If the device is updated, the functions are subject to change without prior notice.