look, it's much simpler than you are making it:
you can't delete a source that is in use. The sources you are trying to delete (e.g. "CD") are currently selected (in use) for zone 2 and/or 3. So SELECT A DIFFERENT SOURCE (one that you do NOT want to delete) for zone 2/3 and then you can delete the previously selected source, since it will no longer be in use.
the manual has very clear instructions for selecting zone 2/3 source.
you can't delete a source that is in use. The sources you are trying to delete (e.g. "CD") are currently selected (in use) for zone 2 and/or 3. So SELECT A DIFFERENT SOURCE (one that you do NOT want to delete) for zone 2/3 and then you can delete the previously selected source, since it will no longer be in use.
the manual has very clear instructions for selecting zone 2/3 source.



























;;;;;;This only happens when watching movies;Pandora & computer sound fine.End credits should have more from mains .