I am looking for help with seeing if this is possible to do. I am trying to just have them in the back so i still have a back seat. I plan on getting 4x SA-15s and 2x SAZ-1500. Also is it possible to do a hair trick with 4 of these or will 2 do the trick. I have a second alt coming in the mail and have 2 XS batteries coming and I already have the Big 3 done to my jeep. If there is anything else I should look into getting let me know. I think I will be building the box myself unless it is not that much to have someone else build it. (Dont want to mess it up to bad. lol) This will be the first setup i am putting in my car and would love the help of the more experenced people.