1. Make sure your car radio is in Bluetooth mode. This can usually be done by pressing the "BT" or "AUX" button on the radio.
2. Open the Bluetooth settings on your phone.
3. Select your car radio from the list of available devices.
4. Enter the Bluetooth passcode for your car radio. This code can be found in your car radio's user manual.
5. Once the passcode is entered correctly, your phone and car radio will be paired.
Here are some additional tips for pairing your phone with your car radio via Bluetooth:
* Make sure your phone and car radio are in close proximity to each other (within about 3 feet).
* If you are having trouble pairing your phone with your car radio, try turning off and on the Bluetooth connection on both devices.
* Some car radios may require you to enter the Bluetooth passcode multiple times.
* If you are still having trouble pairing your phone with your car radio, you may need to consult your car radio's user manual for more information.