Friedmett: Can anyone help? No I'm not going to upgrade for this.
No need to for the MCL82... the MCL82 manual here links to a BeoLink Active - Russian manual!
Besides having the 8000 and a NOS MCL82, I am pretty confident I have the correct manual somewhere!
If I can find it, I will be happy to take a look through it for you and post back.
++++EDIT++++
In the meantime, over at BeoTech... I found THIS and THIS
Look towards the bottom... talks about a kit + confirms modifications to the MCL82 unit.