I really, really want the rear lighted "T". I've never done anything like this to a car I've owned in the past. It's just not my nature. But this aftermarket item seems like something that should be standard on a Tesla! $300 is pretty outrageous for this - but what isn't in the world of Tesla...? Does anyone have this on their car while still under warranty? Did you get any warranty work done since having this installed? Did it make a difference if you did the install vs some other professional installer? I've only owned my MS for about a month and have not yet visited a SC. My concern is that they are going to take one look at it and refuse to fix anything. Like they'll see the lighted T and say "Sorry sir, your loose armrest isn't covered!" or some other completely unrelated do-dad that needs something.. Can you ease my concern?