haha! Yeah...the funny thing about posting a thread like this, is you have to constantly update and read the thread, in case someone slips the correct answer in!
That's a close one...but Dealership parts don't count...has to be Factory added part. Best guess so far.
You've stumped me on the spare tire cover....but I believe it is a no. If anyone knows for sure about the spare tire covers and trunk mat...chime in. Good guess.