Where do my balls go?

[RileyE]

I am in the middle of rebuilding my 2.0t fsi b7 and dropped one of the bolt trays and these balls fell out of it from somewhere and I can't find anything online with where they should go. If anyone is knowledgeable on where they need to go please let me know, My "professional" guess is inside the aluminum turbo bolts but don't want to go sticking my balls where they shouldn't be Thanks in advance!