http://www.soundqubed.com/HDC3112-Copper-Coil-Subwoofer_p_23.html

If I get a 2200 watt amp am I going to need to get a battery or will the amp be fine?

If I get a 1200 amp and HDS312 will that be enough power and will my lights flicker or anything? Im afraid of that

Yes both amps your lights will flicker. On the 2200 with your lack of knowledge then you will for sure fry that sub.

Okay well that's why I'm asking. What do I need to buy to make it not? And how much will all this cost

High output alternator.. Big 3 upgrade @ least one big extra battery. $500-700

Youll,be fine with the 1200 on stock depending on your batt and at light flicker should be minimal