No Dash Lights Popping any amperage fuse!! HELP!!

Hello, I have a 75' Duster With a 318. Anyway it is popping fuses on the int. lamp circuit. I have no dash lights, but I do have headlights. I have replaced the headlight switch, but it started smoking then popped the fuse again! I tried adding a ground lead from the back of the cluster to the dash frame, but had no luck. I will appreciate any ideas. I guess if it was easy it wouldn't be a Mopar LOL,
Thanks