To set up the module, follow these general instructions derived from the verified BT5908 user guide Preparation:

Plug the large white or black multi-pin connector from the Jie Rui BT5908 directly into this port. It will only fit into the correct slot. 3. Wire the Power Leads (Crucial Step)

The is a Bluetooth 5.0 audio receiver module designed primarily for adding wireless streaming and hands-free calling to older car stereos. You can find the verified PDF documentation through FCCID.io or detailed digital versions on Manuals+ . 🛠️ Key Technical Specifications Bluetooth Version: 5.0 (backwards compatible) Bluetooth Name: JieRui-BT 5908 Voltage Input: 5V–12V DC

Jie Rui often uses a generic manual for the BT5900–BT5999 series. The button layout is 95% identical. Download the (easier to find) and note the differences: