Originally Posted by sjbillings

Got my new Pioneer AVH-P3000BT stereo installed today along with a Kenwood CMOS 200 back up cam. I am happy with the improvement in my factory bose speakers, but noticed two things. One, I don't think my factory subwoofer is working right. There is barely any bass coming from it, as I could feel the air coming from it only at the lowest bass level. When I turn off the subwoofer via the receiver, there is no difference in bass. The other thing I am noticing is some background noise in the speakers, but only when I have it on level 1 or mute. Should there be noise? Is my subwoofer not hooked up correctly? I had very nice bass when the factory stereo was in.