Hmm, how do you figure out what fuses to run for inline power and distributor block?

Right now they are matched with the amps, but they should be matched with the wire, right?

Here's what I have now:

Soundstream TRX1500D (120A)

Soundstream TRX2.550 (60A)

Inline Fuse = 250A

Distribution block = 60A & 120A

Power wiring is all 1/0 except after distribution block (2x4AWG)

Question is for next year, I'm doing some upgrades:

Soundstream RUB1.2500D (250A)

Sounstream RUB2.600 (60A)

Wiring will remain the same except I'll be running 1/0AWG from the block to the 1.2500D

What fuses should I choose?

Do I need to upgrade anything else?

Alternator is 200A.

Lemme know if you see something not right..etc.

It's my first build!

Engine Bay:

Trunk:

Should be ok but you need to be safe the knu CCA wire is only rated for 250A. I don't ever see it being a huge problem considering your most likely never gonna pull a consistent 250A through it. Run a 200a fuse on the 2500 and a 50 on the other should be plenty fine. I've run a 150A fuse on my 3000d for weeks and yet to burn it up.

The only difference is that you'll probably have to put a 200-250 amp fuse in the distro. block to the 2500d.

Thanks guys!