need help again!

okay..so i got a new power cable for the amp and now its the amps fuse thats shorting and not powering my sub..what should i do?

You may not have a stable ground or ur power cable is touching metal somewhere and thats whats causing it to short.

does the fuse blow immediately after hooking it to the battery, or does it blown only after the amp has turned on ?

or did you just upgrade your power wire and not get the proper ground wire for the amp