ammeter blowing fuses/ getting hot

hello this is clay posey from out in South Carolina I am in the us navy and don't have much time on my hands but I was wondering if you could offer me some help or point me in the right direction. everything on the instrument panel disconnected it will still pop a fuse up to 30A when I hook up the positive and negative to the ammeter. positive is ran directly from starter relay to the ammeter with only a inline fuse in the way.
Ammeter in instrument cluster short-circuit