Right now I have a Fully loaded Fi Bl 12 in a 2.5 cubes ported box at 32 hz. Powered by a Kenwood KAC-X1R. Have a 4 guage Fosgate amp kit. Im a noob so I was wondering what all to upgrade. The RCA's are scosche from wal-mart, the fuse in the in line fuse holder is 60 amps. Should I get new RCA's and a bigger fuse? All on stock alternator and batt. Thanks. Also will be asking about speakers and cd players later
