1. Introduction
Thank you for purchasing and using our BQCC car stereo. Before installation, please test the unit to ensure it functions correctly, as long journeys can sometimes affect the product. Always use the original power supply unit provided in the package. Incorrect power connections can lead to product malfunction or battery drain.
Important Power Connection Tips:
- Connect the yellow wire to the positive pole of the car battery. Incorrect connection may cause the product to reset and prevent settings from being saved.
- Connect the red wire to the ACC positive pole (ignition switch) instead of directly to the car battery's positive pole. This prevents the car player from draining the car battery when the car is turned off.
It is recommended to remove the protective film from the screen for clearer viewing during use.
2. Setup
2.1. Package Contents
The package typically includes the following items:
- 1x Car radio unit
- 1x GPS antenna
- 1x High and low power cable
- 1x USB cable
- 1x Instruction manual
- 1x Reversing video cable
- 1x Radio antenna adapter cable
- 1x Protocol box
Optional accessories (may vary by purchase):
- 1x 12LED camera
- 1x Driving recorder
- 1x 32GB memory card

2.2. Product Overview
The BQCC 7-inch 2Din Android Car Stereo is designed for Volkswagen vehicles. It features a 7-inch display with a resolution of 1024x600. The unit's dimensions are approximately 222x132MM for installation, with a host depth of 30MM.


The front panel includes physical buttons and rotary knobs for essential functions:
- Left Side Buttons: MENU, Play/Pause, NAVI (Navigation), MUTE, POWER (Volume +/-; Screen off)
- Right Side Buttons: MODE, MEDIA, APS (Automatic Station Search), BAND, TUNE (Up/Down song; set up)
- Knobs: VOL (Volume) and SEL (Select/Tune)


2.3. Wiring and Installation
Before installing the unit into your car, ensure all connections are correct to prevent damage or malfunction. Refer to the detailed wiring diagram below.

Power Plug (20-pin module):
- White: Front speaker Left (+)
- White/black striped: Front speaker Left (-)
- Gray: Front speaker Right (+)
- Gray/black striped: Front speaker Right (-)
- Green: Rear speaker Left (+)
- Green/black striped: Rear speaker Left (-)
- Purple: Rear speaker Right (+)
- Purple/black striped: Rear speaker Right (-)
Power Plug (10-pin module):
- Black (thick): GND (Ground Wire/B-)
- Yellow: BATTERY (+12V Constant Power Supply)
- Red: ACC (Ignition Switch)
- Orange: ILLUMINATION (Illuminate Backlight)
- Pink: REVERSE (Reversing camera control line)
- Brown: KEY2 (Steering Wheel Control -2)
- Orange/black striped: KEY1 (Steering Wheel Control -1)
- Blue: ANT (Auto Antenna Power)
RCA Connections:
- F-CAM (VIDEO-IN-2): Video Input 2 (Front Camera Input)
- AUX R IN: Right Audio Input
- AUX L IN: Left Audio Input
- VIDEO-IN-1: Video Input 1
- VIDEO OUT: Video Output
- FR OUT: Front Right Audio Output
- FL OUT: Front Left Audio Output
- SUB WOOF: Subwoofer Output
- MIC: Microphone Input
- AMP CONT: Amplifier Control
- R-CAM: Reversing Camera Input
Ensure all 8 speaker cables are correctly connected. Each speaker cable must not be grounded, shared, or touch other lines, as this can lead to no sound output, distorted sound, or overheating of the unit.
2.4. Reversing Camera Installation
The reversing camera is typically installed at the rear of the car. Connect the camera's red socket to the power cable, and the yellow cable to the video cable. The red wire of the power cable and the video cable should be screwed together to the positive pole of the reverse lamp. The black wire of the power cable is not used. The other end of the video cable connects to the CAM video input interface on the back of the unit. The red line from the video cable connects to the reversing control line of the power line.

If a reversing camera is not installed, do not connect the REVERSE/BACK cable to any place. Leave it unconnected. Otherwise, the unit may display incorrectly or automatically enter reverse mode, potentially causing malfunction. If this occurs, disconnect the REVERSE/BACK line immediately.
3. Operating Instructions
3.1. Basic Operations
Use the front panel buttons or the remote control (if applicable) to manage basic functions:
- Power On/Off: Press the POWER button.
- Volume Control: Use the VOL knob or +/- buttons.
- Mute: Press the MUTE button.
- Navigation: Press the NAVI button to access navigation.
- Media Playback: Use Play/Pause, Previous/Next Track buttons.
- Mode Switching: Press the MODE button to cycle through Radio, BT, Aux In, USB, SD.
3.2. Radio (FM/RDS)
The unit supports FM radio with a frequency range of 87.5~108.0MHz and RDS function for real-time traffic information.
- Station Search: Use the APS button for automatic search and storage, or the TUNE knob for manual tuning.
- Band Switching: Press the BAND button to switch between radio bands.

3.3. USB Playback
The unit can read audio, video, and picture files from a USB disk. Insert the USB disk into the designated USB port.
3.4. Bluetooth Functionality
Connect your mobile phone via Bluetooth 5.1 for hands-free calls and music streaming. The default Bluetooth name is SWL-BT.
- Pairing: On your phone, search for Bluetooth devices and select 'SWL-BT'. If prompted for a pairing code, try '0000', '1234', or '123456'.
- After successful connection, you can answer calls and play music through the car stereo.
3.5. GPS Navigation
The car stereo supports GPS navigation with GPS+GLONASS+Beidou signals. You can install navigation software (APKs) directly onto the unit or use online navigation.

3.6. CarPlay & Android Auto
The unit supports both wired and wireless Apple CarPlay and Android Auto, allowing you to integrate your smartphone's functions with the car stereo.
- Wired Connection: Connect your phone via a USB data cable. The unit will automatically enter the CarPlay or Android Auto interface.
- Wireless Connection: Enable Bluetooth and Wi-Fi on your phone, then connect to the unit's Bluetooth. The system will automatically enter the CarPlay or Android Auto interface. The signal is transmitted via Wi-Fi, so even if Bluetooth is off, it will transmit normally. Disconnecting Wi-Fi will disconnect CarPlay/Android Auto.

3.7. Steering Wheel Controls
The unit supports learning functions for original car steering wheel controls.
- Learning Process: Press and hold a button on your car's steering wheel. On the stereo's screen, find the corresponding button icon for that function. Click the icon to change its color, indicating successful learning.

3.8. Driving Recorder
The unit supports a driving recorder function via USB signal input, allowing for real-time recording of driving dynamics.

3.9. WIFI Connection and App Installation
Connect to Wi-Fi hotspots to access the internet. Various APK applications can be installed, allowing the car player to function like a mobile phone.

3.10. Media Playback and User Interface
The unit supports HD video playback with a display resolution of 1024x600, offering clear and delicate picture quality. It also supports lossless sound quality.
- Supported Audio Formats: MP3, WMA, WAV, APE, FLAC, AAC, OGG, RM
- Supported Video Formats: MPEG, AVI, RM, FLV, ASF, WMV, MP4, MKV, OGM, TS, DivX, RMVB, VOB
- Supported Image Formats: JPG, BMP, PNG, JPEG, GIF


The unit offers various customizable user interface (UI) themes.

4. Maintenance
To ensure the longevity and optimal performance of your car stereo, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. Avoid abrasive cleaners or solvents that could damage the surface.
- Software Updates: Periodically check for software updates to ensure the best performance and access to new features.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
5. Troubleshooting
This section addresses common issues and their solutions. If a problem persists, contact customer support.
5.1. Power and Boot Issues
- Cannot boot normally:
- Check the yellow, red, and black power wires. Ensure yellow is to positive, red to ACC (key control), and black to negative. Incorrect wiring is a common cause.
- Verify that the original car wiring is compatible; non-standard wiring can cause issues.
- Ensure the fuse on the yellow line is not broken. If not, twist the yellow and red wires together, turn on the key, and press the power button to test.
- If fuses repeatedly blow, it indicates a short circuit in the unit's protection circuit. Professional repair is required.
- Automatic shut-down:
- If the blue (automatic antenna power supply) cable is connected to the unit's power cable, it can cause automatic shutdown. Correct the wiring.
- Unstable voltage can cause shutdowns. Test with a stable 12V-5A power supply. If it still shuts down, the unit may be faulty.
- Car radio shows time after turning off: This is a built-in clock function and cannot be removed. If undesired, you must unplug the power positively and negatively.
5.2. Audio and Display Issues
- No sound when playing music:
- Check if your audio cable is suitable for the camera (if applicable).
- Ensure there are no collisions or short circuits between speaker wires. Each speaker cable must be isolated.
- Test with a single speaker connected to a group of audio cables to isolate the problem.
- No sound right after installation: This is usually due to a wiring error or a short-circuited original car speaker wire. Recheck all speaker connections.
- No sound after a while: Disconnect all speaker cables from the unit. Connect an external speaker to the gray and purple tail lines. If there is sound, the car's speaker line is short-circuited or the speaker is damaged. If no sound, the unit is broken.
- There is noise:
- If the original speaker power is too small, noise may occur at high volumes. Reduce volume or replace speakers.
- If the speaker cable is grounded, connect it directly to the unit's speaker cable.
- Sound cannot be adjusted: Reset the unit or unplug/replug the power cord. If the volume knob is broken, it can be replaced.
- Reversing camera does not display: This indicates wrong or missing wiring, or a broken camera. Refer to the installation method in Section 2.4.
5.3. Connectivity and Feature Issues
- Remote control cannot be used: Test the remote control's infrared emitter with a phone camera. If the light doesn't flash, replace the battery.
- Settings cannot be saved (no memory): Ensure the yellow and red lines are connected correctly (yellow to positive, red to key control). If they are reversed, simply switch their positions.
- Bluetooth not working: Ensure Bluetooth is enabled on both devices. Search for 'SWL-BT' on your phone and pair. If issues persist, try another phone or unplug/replug the unit's power after 3 minutes.
- USB devices cannot be played: Format the USB flash disk to FAT32. Re-download songs and try again. If it still doesn't work, replace the USB drive.
- FM does not receive radio station: Ensure the antenna plug is fully inserted and the antenna is not disconnected or broken. Check signal strength in your location. If problems persist, try inserting a screwdriver or metal strip into the antenna port as a temporary antenna.
- GPS Map Update: Download the map update APK from our website or use a mobile phone's WIFI hotspot to download and install it directly. Copy to GPS ROM and set the navigation path.
5.4. Other Issues
- Product emits smoke: Replace the FUSE. If the problem cannot be resolved, the internal circuit is burned, and after-sales service is required.
6. Specifications
| Category | Parameter | Value |
|---|---|---|
| Basic Parameters | Model Name | 9070-J |
| Type | Android navigation machine | |
| System | Android 13 | |
| Radio frequency | FM 87.5~108.0MHz | |
| Radio IC | 6625 | |
| Amplifier IC | YD7388 | |
| Output power | 60Wx4 | |
| Working voltage | 12~14.4V | |
| Working temperature | -10~60℃ | |
| Bluetooth | Version 5.1 (Default name: SWL-BT) | |
| Performance | CPU | A7 1.1GHz x 4 |
| Running memory | 1G (DDR3) | |
| Storage memory | 32G | |
| Display resolution | 1024x600 | |
| Dimensions & Weight | Display Size | 7 inches |
| Installation size | 222x132MM (Volkswagen dedicated) | |
| Host depth | 30MM | |
| Item Weight | 1030g (Single unit: 1.03KG) | |
| Material | ABS+Metal | |
| Certification | CE | |
| Functions | Reversing image | Support (camera optional) |
| Steering wheel control | Support key learning | |
| Video output | Support | |
| Offline map | Support | |
| Driving recorder | Support (USB signal input) | |
| GPS navigation | Support | |
| USB connection | Rear USB2.0 + Front USB2.0 + Front USB charging | |
| Reset button | Support | |
| RCA Ports | Audio output | 2 channels (left + right) |
| Video output | 1 channel | |
| Audio input | 2 channels (left + right) | |
| Video input | 2-way | |
| Reversing video input | 1-way | |
| Supported Formats | Audio format | MP3/WMA/WAV/APE/FLAC/AAC/OGG/RM |
| Video format | MPEG/AVI/RM/FLV/ASF/WMV/MP4/MKV/OGM/TS/DivX/RMVB/VOB | |
| Image format | JPG/BMP/PNG/JPEG/GIF | |
| Other | Factory set password | 1234 |
7. User Tips
- Bluetooth Pairing: If you need a pairing code for Bluetooth, try '0000', '1234', or '123456'.
- GPS Map Updates: To update GPS maps, download the APK from our website or use a mobile phone's Wi-Fi hotspot to download and install it directly. Online navigation is also an option.
- Simultaneous Audio & Navigation: It is possible to listen to the radio or music while using the navigation system, thanks to the unit's unique technology.
- Installation: Professional installation is highly recommended to avoid potential damage to the car's dashboard or the unit itself.
- Power Wiring: Always ensure the yellow wire is connected to the car battery's positive pole and the red wire to the ACC positive pole (ignition switch) to prevent settings from resetting and to avoid draining the car battery.
8. Warranty and Support
BQCC provides a 1-year warranty for its products, including 365 days of free replacement under specific terms and conditions. For detailed warranty information, please refer to the official documentation.

For more detailed instructions, diagrams, and troubleshooting in multiple languages, please refer to the official User Manual (PDF) available at: BQCC Car Stereo User Manual (PDF).
If you have any questions or require further assistance, please contact customer support. We aim to respond to emails within 48 hours (excluding Saturday and Sunday).