Calls not working in car via AUX cable
I’m having issue with my calls, any Siri commands and sounds not coming through my car stereo anymore via an AUX cable.
It was working all fine for calls, Siri commands etc via the AUX cable in my car until last week when my phone updated to the latest update 15.5 on my iPhone 12 Pro.
Now my AUX cable only recognises music through the car and all calls or attempts to use Siri for directions or commands only work via my phone handset.
Im using an Apple Lightning to 3.5mm Headphone Jack Adapter with the AUX cable.
I am at a complete loss as to why it’s suddenly not working and assume it has to be a glitch with the latest updated as nothing else has changed.
iPhone 12 Pro, iOS 15