hi, please search for my posts in Bluetooth section, I believe I have shared here my experience with the same problem and gave a solution which is simply and quick for you to try.

it was a disconnected plug in the armrest - for some reason it is not as tight as one would expect and for example if I raise/lower armrest it would disconnect some time.

if the solution I gave in the past here is not clear, I will try to clarify things for you.

regards