Looking for used Audi in Michigan

["Smeins, Larry" <lsmeins@ball.com>]

My daughter and son in-law live in Kalamazoo, Michigan, and are looking
for a car.  He is working on a doctorate and she is paying off her new
Grand Cherokee, she didn't listen to Dad, so money isn't plentiful and
they are looking for a good used late model for him.  They have driven
my Audis and want to look for one in their area but report that Audis
appear to be very rare in Southwestern Michigan.  They are interested in
a late 80 or 90.  Quatro would be nice but not necessary.  Any advice or
leads on finding an Audi in their area would be appreciated. 

Larry