Where to buy washer cap for OEM RS4 Bumper

[JumboBlack1.8]

Hey guys....since I can't drive for a long time (just tore a couple ligaments in my knee at work), I'm starting to fix the OEM Rs4 bumper thats been sittin in my garage....Right now, I'm looking for a place where I can pick up the washer caps for it. Already checked ECS.....Anyone got any ideas?

[Siena]

You can get them from Audi direct.

My RS4 bumper came with them, though I had to order a set for someone else recently, who bought a bumper used, and was missing the caps.