I need to install my capacitor and amplifiers. I know the power goes from the battery to the cap and from the cap to the amps, but does the ground go from cap to chassy and amps to the cap or amps to the chassy seperately? Any help on how to do this is appreciated, thanks.

run a wire from the chassis ground to the cap(-) then get another wire from the cap(-) to the ground of the amp.

nice, thanks for the help.

For the ground, it doesn't matter either way if the grounds head to chassis separately or if you want to tag at the cap.