87 5000 CS Quattro / Turn Signal / Emergency Flasher Relay Question

[BUONO]

1987 Audi 5000 CS Quattro Turbo....
 
In the process of removing the dash to replace my heater core and tend to
some other below dash issues...a relay marked 232 / Part Number: 443-947-553
fell to the floor board while I was wrestling the dash out of the car.  The
only thing not working upon re-assembly are my turn signal / emergency
flashers.  I think the relay is supposed to reside in a clip directly below
the instrument cluster near the knee bolster.  The only plug near this clip
is 3 prong.  The relay is 4 prong.  Are there any tricks related to this
relay in regards to the plug  connects to?  Am I looking in the correct
location to install it?  Is 232 really for the ton signal / flashers?
 
Thanks,
 
-F