OBD port?

[Lee Levitt]

I just brought a new (to me) car home, a cashmere over black '95 A6, and it
needs some attention...first a thermostat and then a look around the
electronics. It threw a CEL, probably because of the bad thermostat.
 
A quick question...where's the OBD port on a '95 A6? This car has the Diff
Lock where on my '96 the 12 volt power plug and the OBD port are located...
 
Thanks!
 
Lee
'95 A6 quattro avant 150K
'96 A6 quattro avant 115K
'93 MB 300D 2.5 turbo 180K