Audio Static noise

How To Eliminate Car Audio Ground Loop Noise from USB Chargers

auxiliary ground loop noise isolator box

I’ve been annoyed with the static ground loop noise on my Audi A8L after installing the TV tuner with auxiliary and bluetooth streaming. The bluetooth when plugged in to the charger, the ground loop noise is unbearable, the same with the auxiliary cable connected to my iPhone when the lightning charger is ON. I did