I have a 2014 charger with factory beats audio system I bought the crutchfield harness to bypass the amp and replaced my 6x9 with kicker ks ran it to a lc7i then to a 4 channel amp the problem I am having is if I turn the volume up all the way playing or not playing music I’m getting a loud hiss coming out of the speakers once I turn the volume all the way down to 0 I’m still getting a really low static I’ve tried regrounding re wiring changing the amplifier went through multiple ground loop isolators and even connecting the harness input directly to the amp but nothing works anyone have any ideas or had a similar problem before