subwoofers
#2
yeah.. they have these cool boxes ive seen at my buddies audio store. any way.. they are called truck boxes.. basically they r real thick at the bottom (well thicker) then taper up to be real narrow.. they come ready for 2 subs or just one. the idea is the fit behind ur single cab seat... up against the wall of the cab and ur seat.. the amp is underneath ur seat. they work real well.. install is clean.. you dont even no its back there.. u dont loose much on your seat travel either. oh.. and they make "thin" subs for them too.. the subs r kind like sqooshed to fit in there.
#3