Subwoofer basses without music.
So recently I had to slam on my brakes so I know my my amp moved a little bit in the trunk. So now everytime my fan turns on, or i roll my window down, or even when im turning on the freeway it bumps a little bit. now i moved the ground wire on my capacitor and it started bassing so I disconnected it and tightened it and it still does it. Now i even turned the music down and it has a steady beat to it. Now im stuck and have no clue what it could be.