Escalade Ext Upgrade

[TexasBump]

First official post on this forum not sure if it the right location but f it here it go. What all do I need (extra batt,alt,wires )to run 4 LVL 3 12's in custom box with 2 T1500-1bd Is this a good amp to sub combo...?Am just wondering how some other Bass heads would go about this set up to make sure everything runs smooth... So Far on the truck I have___Red top-Stinger 0/1 gauge running to the midgate The rest is in my Sig..... Any ideas would be great...