When wiring up a LSx style harness does the fuse block need to be grounded? I have + battery voltage going to the block and power to all the connections on the C1 and C2 block, but the C3 block is dead and it houses the fuel pump relay. When I turn the key to the "on" position I don't hear the usual "click" noise that the fuse block should normally make when you know its powered up like the one on my 5.3 truck does. Anyone that has any ideas please feel free to LMK.