Unhappy Car Bluetooth Contacts Sync Issue

Car Bluetooth Contacts Sync Issue

I have been using Venom ROM (ViperOne 6.1.0)

I am unable to sync my contacts with my car's (Ford Fiesta) bluetooth.

Everytime I receive or make a call, the Car's bluetooth just displays the number and not the name of the contact which is stored in the Contacts.

Please let me know how to resolve the same.

I have tried using other phones. All of them are working well with my car's bluetooth.

Please help.

I am not facing any bluetooth audio issues. Songs play smoothly via Bluetooth.
But Calling is where I am facing problems.