whats up fellow bassheads.I'm getting ready to start my build here in the next couple months.I was goin with two 18'' fi btl but i'm gonna switch up and go with 2 15'' fi sp4's on a cresendo bc5500d.I have already done the big 3 upgrade,getting ready to purchase a mechman 270 amp alt.and 2 xs power 3100 one under hood other one in back.i'm not sure who to buy power wire and grounds from any suggestions,and also i need a good enclosure program any suggestions there as well? thanks guys.