Dual amps + capacitor wiring

[yungstarter 10+ year member]

So i'm putting a new sound system in my 1994 civic ex coupe.

Im going dual amps

a rockford fosgate p400-4 amp to 4 alpine Type R 6-1/2 coaxials

then an undecided(looking for recommendations) amp for 2 12" Alpine Type R subs

Plus an undecided capacitor

Ive thought about it a little and i'm going to get 2 1/3 distribution blocks so i can split power into three and combine all grounds into one. What gauges should i go for wiring? 0/1 for power and ground and split into 4 gauge and distribution blocks into the amps and capacitor? Or would A rockford fosgate AWG 4 gauge wiring be good? i'm looking at 1400 rms minimum but depending on sub amp could got up to 1600 probably rms.

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[DammitJames 10+ year member]

scratch the capacitor idea and make sure you do the big 3 as far as wiring goes it depends on the other amp for what it takes but it will prolly be 4 gauge just do 1/0 to a distro block then 4 gauge out to the amps no use in a distro on the ground side