In settings > Siri and search, are all three Siri settings enabled including “listen to Hey Siri”. If your phone has IOS 15 or earlier – Settings > “Privacy & Security” > “Microphone” > make sure that “CarPlay” is enabled. Make sure mic isn’t muted on the cars display in Carplay. Wipe the lead terminals with a soft dry cloth and blow in lightning port on the phone. Some of the above solutions crosses over, what is already working when you make a call, but it’s worth going through them anyway. Also try using a different USB port in the car. Try your phone in another car, preferably a MG Maybe try a new lead for how much they cost on Amazon, because the MFI chips can start to breakdown. What version phone have you got?
Thanks for all this. I have a 16 Pro running 18.6.
The issue is that when plugged in, the phone connects and I can make calls from the screen, but the mic isn’t on the list of available microphones and the sound doesn’t come through the speakers.
The mic isn’t even showing on the list of available mics, so to actually talk and listen, I have to switch to the phones built in speaker.
Current car: Mini Countryman EV in very shiny black!
Previous car: MG HS Exclusive in nice shiny black.