How do I set up the A/C and audio grounding?

This is very simple. There are 2 basic rules to follow:
1.) Ground everything
2.) When in doubt, ground everything

For more detailed assistance in setting up the AC ground, see Equi=Tech Technical Support Bulletin “How to Install a Technical Ground”

For detailed assistance in audio grounding, see Equi=Tech Technical Support Bulletin “Audio Wiring & Grounding”