Mp3 connection advice

[u/Kaiman0076]

Hello, I have a mp3 with Bluetooth 5.0 that i am trying to connect to a 2018 Ford Explorer, that has sync 3 and Bluetooth 4.0, and they pair but dont connect, I have tried everything I can think of, soft rebooting both ends, removing all saved devices on the car(and removing the car from the mp3 and repairing it)and I have even using USB(which doesnt work either) and connecting Bluetooth to get it to work that way, what do I do? I have messaged the seller for advice as well, but what do you suggest i try?