crackle

Hi guys, so i've had this pioneer unit in my SUV for a while now (years). The other day it started producing a crackling noise in all the speakers (doors, dash, sub). When i go into the settings and turn off the subwoofer the problem goes away and everything sounds perfect.  I disconnected the...

I just recently replaced all of the factory speakers in my 2004 GMC Sierra Crew Cab with Infinity Kappa 6.5s. I also installed a Kenwood Kac-8405 720-Watt 4/3/2-Channel Amplifier to power the speakers. I have the power wire run down the driver side of the truck and the RCAs run down the...