[OldCreek]

I use a Tuffy center console security box with a head unit in it. I also have Tuffy 6x9 boxes in front of the wheel wells. They are wedged between the roll bar and wall and velcroed to the wall. I have a 8” sub/amp combo velcroed to the floor under the rear seat. (Quality and sound of sub not great but it works for me)

All this allows me to lightly hose out the interior when needed. The rear 6x9 provide lots of sound. I’ve got 6x9 in the front doors but you have to be careful with rattles.

You can see the rear speakers are slightly aimed towards the fronts as the boxes are wedge shaped. They don't rattle at all. They are velcroed but could probably be screwed into the wall if necessary.