My 96 Yukon 2dr has high end pioneer 4X10s in the rear ceiling and doors with a 500 watt amp powering them. I've set the fade control toward the front to even out the sound because rears overtake the front otherwise. Added a 12 inch sub in a custom ported box I built, tuned to 31.5 htz. I now have more sound and boom than most. More than I actually need. But, I like it that way.