The slot for the fuse for instrument lamps says it takes a 3 amp fuse. Someone told me that was was too low for instrument lamps. It should be at least a 7.5 or greater. But the slot is clearly marked 3 amp fuse for instrument lamps.

Correct me if I'm wrong. The dimmer switch plug gets its power from the headlight switch when its switched to park or on position. Then if I place a vom to back of dimmer switch plug while head lamps are on, I should have current going to that respective plug. If no current there, I have trouble further up the line.