I found this flowchart on Power Acoustik. It's an excellent diagram to follow when you have ground loop issues.
Ground Noise Fix Flowchart
And I never knew this:
Before you get started, check the fluid in your car battery. Sometimes, noise can be eliminated just by topping off the fluid with distilled water!
Ground Noise Fix Flowchart
And I never knew this:
Before you get started, check the fluid in your car battery. Sometimes, noise can be eliminated just by topping off the fluid with distilled water!