4kq vacuum hoses?

[Lines Peter]

I'm suprised your dealer can't find this part.  Have you tried Rod at The
Parts Connection?  Or Carlsen Audi?  You're in the Detroit area, right?
Check the audifans site for parts suppliers.  You should be able to find
someone who stocks this part.  It's not that rare.
When (or if) you get the new one, go to the hardware store and buy a spring
that is a tight fit inside the hose.  This will keep it from collapsing at
it'll last nearly forever.

Peter Lines