what will i need to install and how much do you think it will be?? i need to know about a capacitor?? the amp is 1800w so will i need one. i have an 03 civic?? please help me
You never actually need one they usually help to keep your sound constant from your subs. I would recommend one for a system that size but a cap won't keep your headlights from dimming. for that you need to upgrade your alternator.
