If the question is hardware, look at the top center of the windshield, and compare with the photos on the forum or online - there should be one trapazoidal camera centered behind the mirror and one round rain sensor on an S, or one camera on the right side of the mirror on an X.
So far, there's only one version of S hardware in the wild that we've seen, and one version of X hardware (which doesn't appear to be quite identical.) Anything different than the above might be an indication that you have something the forum has never seen before...