Phone 2 Bluetooth connection to car fix mods pls pin

It took me a while to find a fix for this .If you have a pin that needs to be entered into your phone to connect to Bluetooth you likely get an error that says cannot comucommuni with device. I had this same problem. I did see a thread on Reddit after doing some digging the solution is if you are able to set your pin change it to 0000. I did this and I was able to connect my phone and audio to my car.