1. Product Overview
This product is specifically designed for the installation of after-sales Android head units. Its core function is to adapt and connect the original vehicle wiring harness with the Android head unit, read and parse the vehicle's CAN Bus data, and provide data support for the installation, commissioning and function adaptation of the Android head unit. The product consists of a CAN Bus decoder and a dedicated cable adapter. The decoder has a built-in high-performance chip that can accurately identify the original vehicle's CAN Bus protocol; the cable adapter adopts a foolproof docking design, which does not damage the original vehicle's wiring harness and ensures stable signal transmission. The product is made of high-quality environmentally friendly materials: the decoder shell is made of flame-retardant ABS engineering plastic, which is wear-resistant, high-temperature resistant and strong in anti-interference; the cable harness is made of pure copper core wire, covered with PVC insulation sheath, which is anti-oxidation and anti-aging, suitable for the complex working environment of the car center console.
Due to differences in vehicle brand, model and year, the compatibility of the decoder varies slightly: mainstream models can achieve full-function adaptation, while some niche models and old models may have incomplete adaptation of some functions. This product is compatible with mainstream Android large-screen head units, no programming required, plug and play, compact structure and strong anti-interference, making it a high-quality supporting accessory for after-sales upgrading of automotive Android head units. Special Note: This product is only compatible with 16-pin specific interfaces and Android large-screen head units with UART communication interfaces.
Video: Product overview showing the components and their general appearance.
Image: Main product image, displaying the NSC19 wire harness adapter with CAN Bus decoder, USB cable, and various connectors. Suitable for Nissan Teana 2019 and Frontier 2025 (original 7-inch screen radio).
2. Safety Warnings
- Before installation, you must disconnect the negative pole of the car battery and wait 5-10 minutes for the original car capacitor to fully discharge to avoid short circuits that may damage the original car ECU, Android head unit, and this device. Reconnect the negative pole of the battery after installation; do not plug or unplug the device interface when the battery is not disconnected.
- When the vehicle is in the starting state (including idling), it is forbidden to perform installation, wiring or plugging/unplugging operations to prevent high-voltage electric shock from endangering personal safety and avoid damaging the device and the original vehicle's circuit system; do not touch the metal contacts of the vehicle's circuit interface during installation.
- This product adopts a dedicated integrated connector, which does not damage the original vehicle wiring harness. It can be directly plugged and played through the connector without manual wiring, avoiding wiring errors; when connecting, please gently push the connector into place, and do not plug or unplug it violently to prevent interface damage.
- This product has no signal amplification or electrical isolation function, and is only used for signal conversion and CAN data decoding. It is strictly prohibited to use it in a circuit system beyond the product specifications, and it is forbidden to connect it in series with other signal amplification equipment; it is strictly prohibited to privately modify the product circuit or interface.
- During installation and use, keep away from open flames and high-temperature sources (such as engines, exhaust pipes) to avoid heat aging and short circuits of the device shell and wiring harness, which may cause potential safety hazards.
- It is strictly prohibited for minors and those without basic automotive circuit knowledge to perform installation operations independently. It is recommended to have professional personnel perform installation and commissioning to avoid equipment damage or personal safety issues caused by incorrect operations.
- If the device emits smoke, peculiar smell, abnormal heat or other conditions, you must immediately disconnect the negative pole of the car battery, stop using it and contact the manufacturer's after-sales service. Do not disassemble and inspect it by yourself to prevent electric shock or further damage to the device.
- When the vehicle is parked for a long time (more than 15 days), it is recommended to disconnect the negative pole of the car battery to avoid battery depletion caused by slight power consumption of the device.
3. Product Composition
The product is available in two main configurations:
- NSC19: Includes 1 * CAN Bus Decoder, 1 Set * Cable Harness Adapter Connector, and 1 * USB Cable.
- NSC19-P: Includes 1 * Power Wire Harness only (No CAN Bus Decoder, No USB Cable).
Kind Reminder: This product is provided as a combination kit by default (including 1 CAN Bus decoder and 1 set of cable harness adapter connectors), and also supports separate sales of individual accessories in the kit (you can purchase the CAN Bus decoder separately or the cable harness adapter connector separately). Please choose carefully according to your actual needs when purchasing to avoid incorrect purchases.
Image: 'HOW TO CHOOSE PACKING LIST' table comparing NSC19 (includes Power Wire Harness, USB Cable, CAN Bus Box) and NSC19-P (includes only Power Wire Harness).
Image: The NSC19-P variant, which is 'ONLY POWER HARNESS' and 'NO CAN BUS DECODER'.
4. Specifications
| Item | Specification |
|---|---|
| Working Voltage | DC 12V (Allowable Fluctuation Range: DC 9V-16V) |
| Applicable Vehicle Models | Adapts to Corresponding Vehicle Protocols (Nissan Teana 2019, Nissan Frontier 2025, etc.) |
| Function | CAN Bus Signal Decoding, Original Vehicle Function Adaptation |
| Features | No Signal Amplification, No Electrical Isolation, No Damage to Original Vehicle Wiring Harness, Plug and Play |
| Working Temperature | -30°C~70°C |
| CAN Bus Rate | Automatically Adapts to Original Vehicle CAN Bus Rate, No Manual Adjustment Required |
| Decoder Size | See Product Details Page |
| Harness Length | See Product Details Page |
| Protection Level | IP54 (Dustproof, Splashproof, Suitable for Complex Environment of Car Center Console) |
| Protocol Compatibility | Supports ISO 11898-2 Standard CAN Protocol, Compatible with Mainstream Vehicle CAN Bus Protocols |
| Product Material | Decoder Shell: Flame-Retardant ABS Engineering Plastic; Harness: Pure Copper Core Wire + PVC Insulation Sheath; Connector: High-Quality Brass Terminal + Flame-Retardant Shell |
| Item Weight | 120g |
| Package Dimensions | 25cm (Length) x 15cm (Width) x 2cm (Height) |
For a detailed user manual in PDF format, please refer to the official document: User Manual (PDF)
5. Function Introduction
- CAN Bus Signal Decoding: Mainly realized by the CAN Bus decoder. The decoder has a built-in high-performance decoding chip, which can quickly adapt to the original vehicle's CAN Bus protocol and accurately parse various core data transmitted by the original vehicle's CAN Bus, including car key switch (ACC), reverse gear, small lights, steering wheel buttons, on-board computer data, door switch status, air conditioning operation parameters, etc. Convert the parsed signal into a format recognizable by the Android head unit to ensure that the Android head unit can read and display it normally, and ensure the synchronous presentation of the original vehicle information.
- Steering Wheel Button Adaptation: Decode the original vehicle's steering wheel button commands, support common operations such as volume adjustment and song switching. It can be used directly after adaptation, and some models require additional setting of learning-type buttons.
- Original Vehicle Function Compatibility: Realize two-way signal transmission between the Android head unit and the original vehicle system. After installation, it will not affect the original vehicle functions such as air conditioning control, light adjustment and fault feedback, ensuring the normal use of the vehicle.
- No Damage to Original Vehicle Wiring Harness, Plug and Play: No manual wiring, no cutting of the original vehicle wiring harness, no professional programming required. It can be directly docked through a dedicated connector, which can accurately match the original vehicle cable connector and the Android head unit connector. The installation is simple and efficient, and even non-professionals can complete the installation and commissioning in a short time. Note: Due to differences in vehicle brand, model and year, please be sure to select the corresponding vehicle model through the CAN Bus setting after installation to ensure that the decoder matches the original vehicle protocol; if the corresponding vehicle model is not found or functional adaptation abnormalities occur, please contact the manufacturer for an adaptation plan.
6. Setup (Installation Steps)
Follow these steps carefully for proper installation:
- Power Off Preparation: Disconnect the negative pole of the car battery, wait 5-10 minutes for the original car capacitor to fully discharge, then perform subsequent installation operations to avoid short circuits that may damage the device.
- Remove the Original Vehicle Host: Gently pry open the original vehicle's center console panel with a plastic pry plate. After removing the panel, unscrew the fixing screws of the original vehicle host and pull out all the wiring harness plugs at the rear of the host (it is recommended to take photos to record the position of the plugs for easy reset).
- Dock the Harness: Connect one end of the cable harness adapter connector to the corresponding plug of the original vehicle wiring harness (adopting a foolproof design, which cannot be inserted backwards), and firmly connect the other end to the CAN Bus decoder.
- Connect the Android Head Unit: Connect the other end of the cable harness adapter connector to the corresponding interface of the Android head unit, ensuring that all interfaces are tightly connected without looseness.
- Fix the Device: Place the CAN Bus decoder in a dry and ventilated place inside the center console, away from high-temperature and water-prone areas, fix it firmly with cable ties, and organize all wiring harnesses to avoid winding and extrusion.
- Power-On Test: Reconnect the negative pole of the car battery, turn on the vehicle's ACC power, start the Android head unit, complete the CAN Bus vehicle model setting, and test whether all functions are normal.
- Reset Installation: After confirming that all functions are normal, push the Android head unit into the center console position, screw on the fixing screws, reinstall the center console panel and press it firmly to ensure no looseness or abnormal noise.
Image: Detailed view of the power wire harness connectors, including 20-pin, 40-pin, FM-ANT, 16-pin, 8-pin UART, and 20-pin connector for the CAN Bus Box.
Image: Showing the CAN Bus Box and the USB cable. The CAN Bus Box connects to the 20-pin power wire harness connector. The USB cable connects to the Android Head Unit and the car cable harness.
Image: 'Check before purchase' diagram for 16-pin main interface. Shows the 16-pin connector on the head unit and a table defining each pin. Emphasizes compatibility only with 16-pin main interface and specific extended interfaces.
Image: 'Check before purchase' for original car radio connector. Shows the back of an original car radio with 20-pin and 40-pin connectors. Advises checking if the original car radio has a 7-inch screen and the same 20-pin + 40-pin connector with matching wiring definition.
Image: Diagram showing how to connect the CAN Bus Box: find the 20-pin CAN plug of the wiring harness and plug it into the 20-pin socket of the CAN Bus Box.
Image: Step-by-step visual guide for connecting the cable adapter to the Android head unit, showing the 16-pin power plug and 8-pin UART plug connections.
7. CAN Bus Setting Guide (Mandatory)
This setup demonstrates the general method, which may vary slightly depending on your specific Android head unit. Consult your head unit vendor if needed.
- Enter the main interface of the Android head unit, find and click the [Settings] icon (usually in the shape of a gear).
- Find the Factory Settings in the Settings interface, enter the Factory Settings password (common passwords: 3368, 1617, 8317, 8888), slide down to find the [CAN Bus Settings] option, and click to enter.
- In the CAN Bus Settings interface, select [Decoder Brand], and find the vehicle model corresponding to the vehicle brand and production year (refer to the vehicle model adaptation comparison table attached to the product).
- After selecting the corresponding vehicle model, the system will automatically match the corresponding CAN Bus protocol without manual selection, click [Save] or [Confirm].
- After saving, the head unit will restart automatically (some models do not need to restart). After restarting, the original vehicle data can be recognized normally, and the setting is completed.
Kind Reminder: If the corresponding vehicle model is not found, you can select a general model compatible with the vehicle protocol, or contact the manufacturer for adaptation settings; due to differences in vehicle brand, model and year, some models may have incomplete functional adaptation, which is within the normal compatibility range, and the manufacturer will provide the optimal adaptation suggestion according to the vehicle model.
Image: Screenshots demonstrating how to set up CAN on an Android head unit: entering settings, factory settings, inputting a password, and navigating to CAN Bus settings.
Image: Screenshots illustrating how to select the CAN Bus Box manufacturer (e.g., 'Raise') and the correct car model and year within the Android head unit's settings.
8. Troubleshooting
| Problem | Troubleshooting Method |
|---|---|
| Android head unit cannot read original vehicle data | Check if the connector is firmly connected, re-enter the CAN Bus settings to verify the correctness of the vehicle model selection; if it still cannot be read, check if the vehicle's multimedia CAN Bus node has corresponding data, and contact after-sales service for an adaptation plan. |
| Steering wheel buttons are invalid | Check if the cable harness is firmly connected, re-verify the CAN Bus vehicle model settings, and restart the device if necessary; if it is still invalid, confirm whether the vehicle's steering wheel button signal is transmitted through the CAN Bus, and contact after-sales service to check compatibility. |
| Android head unit cannot be turned on | Check if the power interface is firmly connected, verify the correctness of the positive and negative wiring, and test whether the car battery voltage is normal (not less than 9V); check if the cable harness is damaged or in poor contact. |
| Unstable signal (data intermittent) | Check if the cable harness is damaged or in poor contact, move the CAN Bus decoder to an area away from strong interference and high temperature; confirm that the decoder is firmly installed without extrusion or loosening. |
| Original vehicle fault light is on | Check if the connector is firmly connected and if the cable harness is short-circuited; confirm that the device has not been privately modified or exceeded product usage specifications, and contact after-sales service to check adaptability between the original vehicle circuit and the product. |
| Some original vehicle functions (e.g., air conditioning) cannot be displayed | Due to differences in vehicle brand, model and year, this is within normal compatibility range. Re-verify CAN Bus vehicle model settings; if still not displayed, contact after-sales service for adaptation plan and confirm if vehicle's multimedia CAN Bus node has corresponding function data. |
| Decoder heats up with slight peculiar smell | Immediately disconnect the negative pole of the car battery and stop using the device; check if the installation position of the CAN Bus decoder is away from high-temperature sources and well-ventilated to avoid extrusion; contact after-sales service to test whether the device is faulty. |
| No corresponding vehicle model in CAN Bus settings | Try to select a general model compatible with the vehicle protocol; if still not adapted, contact after-sales service to provide vehicle brand, model and year for an exclusive adaptation plan. |
| Conflict between Android head unit and original vehicle functions after installation (e.g., abnormal light control) | Disconnect device power, re-dock connector to ensure interface is in place; re-enter CAN Bus settings to verify vehicle model, and contact after-sales service to check protocol compatibility if necessary. |
9. User Tips
- Always double-check the compatibility of the cable plug on your car and the socket on the back of your original radio with the provided images before purchasing to ensure correct fitment.
- If you are unsure about compatibility or encounter any issues during installation or operation, do not hesitate to contact the manufacturer's customer service for professional technical support.
- Take photos of the original wiring harness plugs before removal to aid in easy and accurate reassembly.
10. Maintenance
To ensure the longevity and proper functioning of your CAN Bus decoder and harness adapter, follow these general maintenance guidelines:
- Keep the device in a dry and ventilated area within the center console, away from high-temperature sources and water-prone areas.
- Avoid pulling, bending, or squeezing the cable harness violently to prevent damage to the copper core wires and loosening of interfaces.
- Do not disassemble the CAN Bus decoder privately, as this will damage internal components and void the warranty.
- Regularly check connections to ensure they remain firm and secure.
11. Warranty and Support
Warranty Instructions
- The warranty period of this product is 1 year, calculated from the date of purchase. The warranty scope includes the CAN Bus decoder and the cable harness adapter connector.
- Within the warranty period, if the product has non-human damage (such as quality problems, decoding failures, loose interfaces, etc.), you can contact the manufacturer with the purchase certificate to enjoy free repair or replacement services.
- The following situations are not covered by the warranty: human damage (wiring errors, extrusion, impact, water ingress, private disassembly, etc.); failures caused by private modification of the product or use of non-original accessories; damage caused by force majeure (earthquake, fire, collision, lightning strike, etc.); product failures beyond the warranty period.
- After the warranty period expires, if the product fails, you can contact the manufacturer to enjoy paid repair services. The specific charging standard shall be subject to the manufacturer's announcement.
Contact Information
If you encounter problems during installation and use, or need to consult about vehicle model adaptation, fault troubleshooting, warranty services, etc., please contact us through the following methods. We will provide you with professional technical support and after-sales guarantee:
- WhatsApp
- WeChat
- Email: pinmany@163.com
Manufacturer Address: Room 1001, Building 8, Hesheng Shangguan International, Huicheng District, Huizhou City, Guangdong Province
Contact Phone: +8618688336008