Alternative To A Capacitor In Car Audio Can I Use A Capacitor For My Car Audio System Instead Of Upgrading My Alternator?

Can I use a capacitor for my car audio system instead of upgrading my alternator? - alternative to a capacitor in car audio

I have a 1200W amplifier that my alternator is damaged. I've heard that a capacitor is a method of fixing. Are there other alternatives? What size capacitor is used (Farad)?