im installing 4 12inch diamond audio d3s in my car and i need to kno if i can run off of my reg battery or do i need to get some for of power inverter to push more to the subs so i dont drain my battery???? or if any suggestion i would really appreciate it. Im also lookin to install a tv to so i need to kno wat to do????

you def need a deep cycle battery & maybe hunt a cheap uprated alternator if possible to be safe. Power caps will be decided if you feel the need or you like the look

first thing is first if your not useing a hi watt amp to push them then you would not need any thing but if you are going crazy and stuff then i sugest if you have a good alt. all you need to do is get a optama yellow top gel cell bat. and any 1-3 farid power cap and you will be fine. the main thing the cap will do is keep your lights from flashing ie. headlights dome lights gauge lights

What is your current battery and what amp (model and wattage) are you going to be running these subs with?

There's no point upgrading your battery/alt unless you are going to be pushing their limits.

I'd have thought running subs like those beautys he'd be running some major amps!