hey i just joined up here, joined about 1 week ago at caraudio-forum.com, and been a member at roe.com for about a year. my system (which i will put in my sig.) is an Alpine cda9856, 30g ipod, 2 alpine type r d4 12"s in a 1.49cu. ft. per chamber vented enclosure, knukoncepts 1/0 power/ground wire and sundown audio saz 1500d @ 1ohm. after i get it hooked up an see how my voltage does i will be purchasing a trunk battery as well. the only electrical upgrades i have are 80 amp alt. (stock 65amp) and a duralast gold 1000ca (stock 650ca) battery under the hood. this is all in a black on black w/ chrome trim 1986 lincoln towncar sig. series.