2nd battery

I am in a 1997 toyota t100 and i need some 2nd battery recommendations. I have a avatar stu-15 3000w rms. I have a tharamps smart 3 im running stalk alt with a big 3. i am running all 1/0 gauge power and ground wire as well. i prolly left lots of things out let me know if you have any questions...

Newbie to the forum here!! I have a 99 Tahoe with stock alternator and Optima Red Top 9004-003 Battery. The system I plan on running is an 800 RMS amp and a 2500 RMS amp with 2 8" cooling fans. I have also have the Pioneer AVIC-Z150BH head unit. My question is if my current alternator and...