Originally Posted by badsha
I have exactly same problem! Same Hifi harnes from Technic and xd600/6 hissing noice Even at minimum gain and at muted.
Even i can hear scartching noise sometime in te rear soeakers... Im out of idea...
Its because you installed the system on your own.
Nobody know if your gains are correct, if your wiring is correct.
Very limited knowledge on audio and DIY projects end like this.