No power to instrument panel lights.

The dash light fuse only has power when the light switch is turned on.
Thanks; now I have demonstrated that my wiring knowledge is … we let’s say not exactly top draw. I have an additional question. Blower motor works if hot wired directly to battery. But doesn’t when the hot ( green) wire is attached. I have a full 12 v at the green wire. Checked the connectors have good contact. Do I have an amperage problem?