Use a distribution block or not

I have a kicker kx1200.1, kx650.4, and a Kx3 crossover and I want to know if i should use a distribution block for my ground or should i hook all of them up to ground individually.  I also would like to know if using 4 gauge  power into my block with 8 out will be enough.

If using a block for grounds, make the wiring sizes identical to the wiring for power.  If the power has 4 ga. in / 8 ga out.....do the same with the ground block.  The ground wire that terminates at chassis ground is essentially the same gauge wire as the power wire connected to the battery.  A grounding distro block can make the installation neater.

not only does it make it neater ,  but it helps to keep ground noise to a minimun specially if you have a few amps.gcorrea