I have a 1980 K20 and I am going to put in 2 12" Subs and the only spot for them is behind the seat but I am not exactly sure how to go about doing it. Should I get 2 boxes and put one 12 in each on and put one behind the drive and one behing the passenger with the amp bloted to the back wall between them? Or should I put both 12's in one box then the amp off to the side? What will sound better? Also I was going to get 8 disc changer and bolt it to the floor under the seat on the passenger side, will it fit? Thanks for all your help. If it aint Chevy it aint worth anything.