fusing

I'm a little torn. I'm seeing two direct opposite answers. Here is my set up: -Fosgate T1500 (man. recs 200a) -Focal AP 4340 (man. recs 40a) -Focal AP 4340 (man. recs 40a) -0awg running into trunk AGM, into fused distribution block) For one, what fuse size do I run for my main power wire? -I'm...