can anybody show me some pics of where they have there amplifier and subs installed in there quad cab trucks. Because I'm about to hook up 2 10" kicker comp vr and a Lanzar 900 watt amp but dont know where to put the amp.

 

If you're willing to go through some work you should mount it on the back wall. You'll have to remove a seat, use sheet metal screws or liquid nails to attach a 1"x2"x length of amp piece of wood to the wall and mount your amp to that. The wood will allow the amp to clear the vent on the back wall, and that vent willl ensure that the is plenty of airflow around the amp.