So i have an alpine thin subwoofer in box that i keep behind my back seat. I did that for a year but i want my very limited trunk space back. So I was researching what everybody else does and i saw some cool pictures of a subwoofer hidden in the seat which seems like its a lot of work and the other would be to put it in the stock console. Has anybody built one for under the console? If so how big of a sub could you fit underneath?