03 tahoe 5.3, 3 12s alpine type s arc audio ks 500.1, rockford dsm 100 , rockford p1 6.75, 1.2 massive audio capacitator hopefully rebuilding and getting 4 12s alpine on 2 rockford 750, all rockford p1 6.75 and rockford tweeter, xs power 3400 and a 250 amp alternator