My knowledge of electronics is very limited, but I think I should be able to understand the answer to this.
In a car, if I turn the volume up as high as it goes with the auxiliary cable plugged in, I can get a constant, quiet, hissing noise to come out of the speakers. What causes that "static"? Rogue current flows, the air touching the male end that's sticking out, or other things I just am not thinking of?
What causes the background hissing in car speakers
automotive
Best Answer
Here is an article that explains where the noise comes from you are hearing. This is the detail below but some formulas have not been extractable from the source so read the source.