Need some electrical help please

[hdff]

Tonite I was looking for the wire that goes to the dome light , think I found what I was looking for. Backed the truck out to get something out of the garage then went out to pull the truck back in. When I turned the key off i noticed light on the external gauges did not turn off as usual. Did some checking and the whole fuse box appears to be hot. I don't have a radio or anything else to see anything is on. I just got this truck about a month ago and am still trying to figure it out. Turning the key off will kill the truck but no other power apparently. Undisclosed to me prior to me buyin it the wire harness has been whored up a little . I unhooked the battery to kill the power but why won't the key kill the power. The gauges are hooked up to a switched slide on the fuse block. The truck is a 1971 Cheyenne super. Thanks in advance.