I've finally got the homemade 12" trunk sub box made. a long story short, it fits perfect in the back however, its fitting flush right against back seat. since i'm firing the thing to the front it needs some room to breath. with no place to put the back seat, i'm not gonna dump it. plan on just cutting right into the back of the seat. allowing an inch or two for the sub to breath. has anyone done some cutting on their back seat before? i can sew a thing or two but i'm trying to figure out what to do with it. suggestions and ideas are appreciated!