70 Hood Turn Signal Light Disassembly

[Davtona]

I've been trying to disassemble a 70 Charger hood turn signal indicator light. This is a used original unit in fair shape. I'm trying to unscrew the wiring nut from the threaded boss on the plastic indicator as if I was going to change the bulb. I have been spraying it with a penetrant but no luck so far. Obviously I cannot apply any heat as it will melt the plastic lens. I hesitate to use a pliers to try to loosen for fear of breaking the plastic around the threaded boss. So I have been applying finger pressure only. Anybody been down this road before and have any suggestions?    My next step may be to soak the entire unit in a penetrant.  


Whoops wrong section Moderator please move!!