I have been having noise problems for a long time when using the line connection of my beloved audioBox iOne, moments ago I felt a small tickle on my finger while I disconnected a jack cable and I rubbed one of the screws on the chassis. So I took an electricity detector and it effectively tells me that all the screws have electricity, I don't know what voltage or current, but the detector's led lights up when I touch the screws. Is this normal? My audioBox iOne is from the year 2015 , never had any problem , just that buzz.
Thanks in advance