97 gmc yukon 5.3 fuse block wiring?!

So iv got the 5.3 in and bolted up but CANT for the life of me figure out the fuse block. Im using the stock fuse block that I came with the motor. It came from a 2000 gmc yukon. But I figured out the starter and making the fuse block hot. That was easy. But I need to know how to rewire the wires from the cab to the new fuse block so the fuel pump and ignition and crap like that work correctly. I just want it to look stock and work like stock. So needs to start from the key and prime the fuel pump like stock. PLEASE HELP!