Low level signal PREVENTS noise.
"Someone mentioned something about the sub being a problem... it wouldnt be, as the amp that came from the car has the ability to power it, it takes the signal from the front and rear signals from the oem deck. (most likely it was a seperate amp for just the sub, which would again complicate the wirring process more)."
I mentioned the sub being a problem. And as you later pointed out in your paragraph, its an overall problem with integration.
Spy