I will be hosting the same old song you've heard before from a lot of people, the 2 12" Alpine Type R 4 Ohm DVC SWR-1242D subs with Hifonics BXI1606D Amplifier in an 2003 Ford Mustang Base V6 3.8 What I would like is some links or Product numbers to look up to purchase for god quality High Output Alternator, Capacitors, and Deep Cycle Battery. Whatever will run this sub amp combo flawlessly at the cheapest price if nothing else just name off the parts I can use and Ill google them and purchase them. As far as the Battery goes I found a GRP 31m and GRP 27m Deep cycle Battery at Oreilly's Auto Superstart brand for about 80 bucks. Is it any good do ya know? And Which would I need 27 or 31 more or less and wtf does GRP Stand for, I couldn't find anything on the web about it.

Please give me suggestions and part numbers on Nailing this sucker in the head.

yeh he is rt i am running 2 4000 wat amps and to 15 rockford fosgates and i have three batterys and high ouput altn. i got it of net just type in high output alt on web sit and see what pops up i just looked for best price this is the way to go if u dont wanna f//// round if u no what i mean if u wanna run more stuff ur ready i have air bags on it lol

Just a tip, if you're an audiophile and want the best sound possible.... Forget a capacitor. Invest in two high quality (or three) Optimum batteries. Use on in the engine, and place the other two in the trunk. Run at least 0 gauge, or 'double naught' gauge wire from your high output alternator to each of the batteries.