Starter fuse always busted

good day guys here i am again sharing some xj repair now it`s my starter fuse always busted i have to open the hood and manually igniting the engine after removing the fuse on the relay....putting my keys on...why my fuse always busted ....does my jeep need to be seen by a computer check or do i need to replace another fuse lug .....thank you .....all d best...

Back trace all of the wiring and check for a short or a wire grounding out on metal.

thanks finneys98 xj ....i think the source coming from my installed 2nd amplifier and subwoofer ...every time i got on humps nor sudden push brakes.. sound becoming less ,,,got to check wire connection......