d luv

I already have the cap, I should not use it? If I should use it do I still need a fuse between the cap and amp even though they will both already be fused at the distribution block?

I plan on running this wire http://www.wireandsupply.com/product_p/sgx-2-fslash-0-fslash-01.htm , which size of these http://shop.genuinedealz.com/Marine%20Electrical%20Supply/Tinned%20Copper%20Cable%20Lugs/00%20AWG%20Tinned%20Lug/?sck=12205831 connectors should I buy to run with the wire? Also will a 0 gauge distribution block work with that 2/0 gauge wire, I have not been able to find a bigger block? I will be running 250amp fuses throughout the setup. One from alt to battery, one 12" from battery to distribution block? I only want the cap to be used on the sub amp and both outputs on the block are 250amp fused, do I need to run anymore fuses in the setup?