I need a box design for 4 15 inch mags in a ported enclosure. They will be going in an 07 Escalade. The room the person has to work with is about 55 inches wide, and we probably don't want to go more than 20 inches tall. So the depth will be dependent on how tall we go with. I can give you all the info you need, I just am not sure how you make those nice graphic designs that show all the dimensions. I treid doing it earlier and I couldn't get it to look right. So let me know what you guys can do to help me.