2001 gmc sierra 10 amp ignition

I WAS ON MY WAY TO A JOB ONE DAY, DRIVING MY VEHICLE. WHEN I ARRIVED I SHUT OFF THE TRUCK AND WHEN I CLIMBED INSIDE TO DRIVE AWAY I NOTICED THAT MY TRUCK WOULD NOT START. I NOTICED THAT MY 10 AMP IGNITION FUSE INSIDE THE TRUCK HAD BLOWN. I REPLACED IT AND MY TRUCK STARTED. WHEN I ARRIVED AT MY HOME THE SAME PROBLEM STILL EXISTED BUT NOW IT WOULD NOW START EVEN WITH A GOOD FUSE. I HAVE TRACED WIRES TO NO AVAIL. I HAVE ALSO REMOVED THE STARTER AND SOLENOID TO REMOVE THEM FROM THE EQUATION BUT ONCE REMOVED IT STILL POPS. I CANNOT FIND THE PROBLEM FOR ANYTHING AND I HAVE BEEN WITHOUT MY TRUCK FOR TOO LONG. I THOUGHT IT MIGHT BE THE IGNITION BOX BUT WOULD LIKE SOME POINTERS OR INFORMATION THINKING THAT IT MAY BE SOMETHING ELSE. ANY INFO APPRECIATED THANK YOU.