The device typically connects to the vehicle's or Media Interface (AMI) on the back of the head unit.
Not sure if the PDF you found is legitimate? Run it through this checklist:
If the English manual is unavailable, download the multi-language version (often labeled "EN/CN/DE"). The English section starts around page 10.
The Internet Archive (archive.org) sometimes hosts verified user-uploaded manuals. Search for "jie rui bt5908 manual." Cross-reference the upload date and user reputation. Verified uploads typically have a text file accompanying the PDF confirming its authenticity. jie rui bt5908 manual pdf verified
The BT5908 features an automatic pairing protocol for ease of use. Turn on the vehicle ignition to power the module. Open the menu on your smartphone or tablet. Navigate to Bluetooth and ensure it is turned on. Scan for new devices.
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[Header] [ID] [Speed_MSB] [Speed_LSB] [Direction] [Checksum] The device typically connects to the vehicle's or
To help you get your specific system up and running, what is your vehicle, and does your factory radio currently have an active AUX option in the menu? Share public link
Reconnect the car battery and turn the ignition key to the or ON position.
Before tearing into your vehicle dashboard, review the factory operating parameters for the Jie Rui BT5908 module to ensure system safety: The English section starts around page 10
: Turn off the engine and remove the key. If your radio requires a security code, ensure you have it before disconnecting power.
: Turn on the car and the radio. Press the CD / Disc / Mode / AUX button once or twice to switch to the music play mode. 2. Bluetooth Pairing Enable Bluetooth on your mobile device. Search for a new device named "JIERUIBT" .
The Jie Rui BT5908 typically features a main wiring harness with loose power leads and a specific vehicle connector. Power Leads
The radar outputs a data string typically formatted as follows: