Dash rattle 2017 gen 4

I gotta say the video for getting the top of the dashboard off for this car is bullshite. It is a lot more involved I'm not sure what the hell this part is but there's a piece of plastic on the top of it that was just rattling away. I put some tape on it but I really don't think it's gonna work out for a long period of time. if anyone knows what this part is, please let me know.

 

This is the part: found it in another post