Trailer Hitch / Radio

[CCalkins@eworld.com]

I am interested in learning whether it is possible to add a trailer hitch to
my Audi 200TQ station wagon for the purpose of pulling a small sailboat
(Laser), or a trailer containing several windsurfers.  In either case, the
gross weight of the trailer would be less than 500 pounds, with a
commensurately small tongue weight.  My recollection is that Audi recommends
against installing a trailer hitch on a quattro equipped car.  Any relevant
list member experiences on this issue would be appreciated, including where
it is possible to obtain an appropriate hitch.

I am also interested in learning whether Audi has any sort of radio exchange
program, or radio refurbishment program, whereby I can replace/repair the
stock radio for less than the cost of a new Audi OEM one.  I am interested in
retaining the radio station display function on the dashboard computer
display.

Thanks.