I just realized the kit comes with an unfused d-block. Would it really be necessary to have a fused one with the 9awg being such short lengths? If so, could I use 1/2 the amp fuses as in the amps? ie. amp1=40a could I use a 20a fuse since the block is 1' away from the amp?

Sorry for all the ?'s but no other place to turn but the net.