Hi everyone...I need help. I installed the Z1 and there was no problem. I decided to hook up a Kicker Amp and subwoofer and components. Now you get engine noise (a high whirring noise when you start the car and when you hit the gas....it is soooooooo annoying). Any installers out there that can help?!? I know it is not the amp or the rca?!? What else can it be??? Does it have to do with the ground?!?
Please help....I beg you!!!!