I an trying to run an amp off the factory harness that was cut off.I got a wire diagram from a member.I hooked it up and the amp has no power(had it hooked up this moring in another car so i know it works) so at the bottom of the paper it says that the amp uses a 30 amp fuse in spot #24 WELL i check under the hood to see if the fuse is bad and there isn't a spot for a fuse in #24????????????????????? WHAT GIVES