Might be your cars fault. I’ve been in some cars that are cooperative (current is like a 99.5% success rate) and some that are… Not. Used a VW Bora, aftermarket head unit worked like 1 in 10 attempts. Newer Toyota corrola straight up steals my Bluetooth connection so I’d give that about 140% because it will always connect even if I don’t want to, am in another car and currently connected to a different device.