Thanks for the reply MrRitchfield. I am having no luck finding a solution for this.
I have a factory Sub that is under the back seat. I am not sure if it has an amp, but if it does, it's factory. I tried unplugging the sub harness and the sound quality is the same. When I turn off the sub from the settings and it doesn't change either. I am not real positive the sub is even working. All that I know is that the sound quality is bad. Voices sound tinny and there is distortion, even at low volume levels. Is it a possibility that I got a bad unit? Could it be a grounding problem? Any su