Since iTunes plays through the USB input - seems it is active.

In any case, I am now trying to use Mconfig to set up everything in the 818v3.

Problem: When trying to Refresh/retrieve Serial number I get this message saying
Quote
This version of Configuration Program cannot be used with 800 series version 3.

Primary system: 818v3, DSP8000 40th SE, Linn Klimax streamer, Esoteric CD

2nd system: DSP7200, 7200HC, 861v8