I got the 60 amps figure from a formula for calculating total draw on crutchfield.

So all I gotta do is replace the 30-amp fuse with a 60- or 80-amp fuse?
And after I run the rca's then just solder the basslink's 8-ga power wire onto the amp's power wire at any point? I'd rather do that then re-wire my car with 4-ga wire. Let me know.