3.5" two ways in the front corner dash x2
4" two ways in the kick panels x2
3.5" two ways in the roll bar x2
4" Two ways in the roll bar x2
From what I have heard you can also purchase an adapter for the roll bar to install 6x9's instead.
I have the same issue. Seems to be that the sound bar isn't put together very tightly. I haven't had time to look into it. I would suspect some sound deadening would resolve this.