Updating for those who had an alarm installed - it's been mentioned in other threads how your interior motion detection feature will not work unless the rear dome light cover (behind the sunroof) has open slots. Unfortunately, the vast majority of early builds have sealed covers, rendering your motion detection useless. Look closely as the sealed covers still have little fake louvers molded in, but you can't see through them. Check from the back seat - much easier to see...

Anyway, I inquired at my dealership today and Service Dept. confirmed a national backorder on the replacement. Should be at least a few weeks... oh well, hopefully this won't become a trend...