For those who might be on their second or third screen, any warranty applies from the date of the new screen i.e. you can be coming to the end of the vehicle warranty but the screen warranty starts from the date the new screen was installed.
I don't think this is correct - the warranty would only apply from the date of original purchase. If you paid for a second or third screen, then, yes, it would have its own warranty from when you bought it. If something is replaced under warranty, its warranty doesn't start all over again.