First thing...  I know why ask about that get a new aftermarket and be
done with it.

I can't, that mercedes symbol and leaving it stock with stock
accessories is giving me all the enjoyment.  It looks like its supposed
to be there.

So here is the question...  When I speed up it gets louder,  when I
brake volume gets lower and when I hit bumps it kinda gets quieter
kinda.  I have heard that is the amp,  does anyone know for sure?  The
fader doesnt change anything but what it is supposed to, could it still
be that?  A bad ground?

Thanks in advance,

Jason