I am going to build another box because I am not happy with the way it sits in the car, it's size, etc... Going to be upgrading my electrical soon, doing the big 3 at the same time, hoping that will keep up.
So I am toying between two different ideas:
1.) rebuild with my current setup and build a box to be happy with.
2.) Adding another 12XL and just building a new box for the both, but I won't be able to get another t1500.1 for a while so I would have to run both subs with one amp for a while. It would have to come after my alarm, alt, big three, and some other minor mods...