Here's my experience with the adapter: I have a Mazda MX-5 Miata with the latest Mazda Connect firmware (70.00.352B). I received the USB-C version of the dongle with the 03.18 version of firmware installed. When it works, it's awesome, but unfortunately I am having both connection issues on starting the car and then random Mazda Connect reboots while driving it. To Carlinkit's credit, they warned me that they had not tested the adapter with my car. I am keeping the adapter in hopes the issues get fixed with future firmware (on either Mazda's or Carlikit's sides), but I do not recommend current Mazda Connect users buy this adapter. I will update the forum if the issues get fixed.