Keyless remote (RF) receiver location '95 A6/S6?

[keith.bedard at att.net]

Hi.  I recently purchased 95.5 S6, and am searching for location of this part.
Is it integrated into the door lock motor, or is it a separate device?  I
believe it sends the signal to the door lock motor to lock/unlock car.  Unlike
most of the remotes, mine is not infrared, it is RF.  My guess is it is in the
left or right area inside the trunk, under carpeting.  It would be great to
know specifically where it is before I hunt.  TIA!

Keith Bedard
Westminster & Medford, MA
'95.5 S6
'91 200q20v
'84 GTI