What are you installing this into?
Go to the Bluetooth app and search for devices. Default PIN is often 0000 or 1234 . autopica android player manual link
Correct wiring is the most critical step of the installation process. Misconnecting power or ground wires can damage the unit or drain your car battery. Standard Autopica Android head units utilize a universal 16-pin main power harness. Main Power Harness (16-Pin Connector) What are you installing this into