Fuse box

[kaycee]

63 C10 only about half of fuses box has power .I have tail lights,blinkers front and back. I just pulled this ruck home so still trying to figure out what is what and what was cobbled together. Key on I only have about 3 fuses hot pulled fuses to make sure they are good contact and looks like no wires are butchered up or spliced. So my ? is reading the schematic from FAQ forum the hot comes in through the light switch and then to the fuse box.I lose power at the firewall and no power at rad. support.I'm thinking the light switch is the culprit any ideas ?