upgrades for my car audio system?

rofl

New member
I have a 1999 toyota tacoma everything stock.
I have a dd 3515 sub being powered by a 1800 W amp
What upgrades should i get for my truck?
Capacitor? Alternator? Big 3? Battery?

Also can you suggest what kind of cap, alternator, or battery i should get?

thanks
 
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