1963 c10 starting issue

[nutsfor59]

hi,when attempting to start my truck i get nothing !! no dash activity.....nothing !!! unless i run a jump wire from the battery over to the horn relay,obviously this is not normal,have not found a wiring diagram yet for dummy light dash,i got a alternator wire harness from lmc but the colors dont match what i find in books,soooooo what wire go where on starter,coil,horn relay etc and what color are they supposed to be ???? did these old harnesses have fusable links or something like that ??? my harness seems to be intact and no eveidence of hacking /damage so why does nothing happen when you turn the key ????hhmmmmmmmmmmm