Parasitic amp draw after doing the jumper at the regulator

[trijetal]

I followed the instructions for doing the mod but now I am getting 1.63 amp draw with all power turned off. I found it by accident while looking for a draw from the horn relay. After unplugging the relay I noticed I was still getting a draw. The only other thing I had done was the jumper - so I unplugged it from the alternator and the draw went away.
Does anyone know why that might be happening? I just bought the truck so this is new to me. Thanks in advance.