Recently the subject of rubber plugs came up and I was looking for the two in the spare tire well. I think they are the same as the two that mount in front of the hood latches. Just for fun I went to the dealer and ordered two. Attached is a pic with part number and the original plug on the right. Looks to be a good fit, they are for the 35mm opening, the inside will look a bit different but it is a good solution for an NLA plug.