I have a 2021 model3 without the radar. I picked it up June 9th. The kit still does not work. I am still waiting for in update from the engineers. Opting for a refund if they do not have a solution. Then I will take the refund and install my own system. I only have sound in the front two speakers and the speakers on the dash. The rear and subwoofer and rear deck speakers do not work. They sent me an update for the DSP but it disabled the door speakers and only the speaker right being the touchscreen works. So as of now I have it disconnected. Waiting for a solution.