Ok so here is my story.
Started my car, sound system was on low volume. Started driving and put up the volume and noticed the speakers where cracking/distorting, had no clue what could be wrong since everything was fine the day before.
Checked my amps, nothing seemed out of ordinary, checked setting on the head unit and everything was the same. Pulled out the head unit to find one of my RCA's where broken..no brainer here, I found the problem right? Went out to buy new RCA leads, plugged them straight in and it continued to make the same distortion.
So now it gets tricky and I ask myself is it my amp? I called my mate over and we plugged the RCA's into his amps so his speakers would be getting the signals from my head unit. Distortion continues to through his speakers. Now it has to be the head unit sending out crappy signals? I plugged in a whole new deck and the distortions still continued!
Sound systems can really do your head in sometimes lol but yes any help would be appreciated!
Cheers.