Rear Center Console

LOL, I think diagrams and arrows would be the way to go.
I needed them when I read my first basic sound book. It was a radio shack edition on who to build your own speakers. It covered the basics and a few math formulas to work out box & tube sizes. Told you what the numbers ment when you purchased speakers 1 by 1 for a custom system. Can't find that book now though.