iOS18 & Carplay Issues - Person I Call Can't Hear Me

Hi

I updated to ios18 and now have a problem with my carplay. I always plug in so wired. All working totally fine until the software update. Now the person on the other end can't hear me when I'm hooked up in the car. All looks to be the same, I can hear everything, I can dial out on the touch screen etc but they just can't hear me. I've tried 3 different people. All ok if I try just through my phone - no car.

I have tried a reboot of the phone, no change. I will try removing the car from the carplay on the phone and re-adding it see if that works later today on my break at work but wondered if anybody else has the same issue?

Toyota Rav 4 2020

[Edited by Moderator]