Search on terms: ground loop interruptor before deciding you have a broken unit.
My first Infill G4 was damaked, i sent it to my retailer and now i got a new Infill G4 (guarantee). (European version)
But now i have noise from all my speakers. I hear the noise without running engine. Only the G4 is running.
With my first radio I did not have that. Is the new Infill G4 damaged?
regards from germany
I connected a cable at the Infill G4 to vehicles ground...same problem