Looking for a little help.. just received this in the mail today.. my ? Is is there a fuse inside the box itself.. or do I need to put one inline.. not even sure what and how many pills are in it.. the seller didn't know anything about it ( never opened it).. looks like a hassle to open it up.. so before I do all that, I was hoping someone here (forum) can give me some insight on this amp I really appreciate any help.. Thank you..