I have 1994 saturn sc2 coupe an it isnt in the best shape so i mine as well put a subwoofer in it. I currently just have hooked up a sony xplod cdx-gt30mp car stereo hooked up in it a i brought a single 12 inch sony xplod SONY XS-GTX121LS subwoofer in a enclosure 4 ohms with 1000 peak power and i need to know what watt sony xplod amp i need and what gauge wire kit also i want to know if my car can handle my sound system and will my car be ok im not to sure i still have the stock alternator. I really am lost with this i dont want to overpower my car but i also want bass in my trunk. So please tell me what i need to do from this point.