Its me and my friends Mud boggin truck. We got a cd player, 4 6" speakers, 600watt 4ch. amp hooked to them. Those sound good with the top off, but we want louder.We also have two 10"s in the back, but cant hear shit over the motor and the wind. We where thinking of adding some 6X9's on the Roll bar, and need some kind of bass. Any help would be appreciated. Thanks
