Fuse block access - 65 Satellite

Guys,

The fuse block on my '65 Satellite has a thin plastic cover over the wiring-side of it. Any idea how I get this off? I've tried lifting the 'ears' off the plastic tips but no luck.

I fear I may rip it, but maybe that's the only way? Is there a trick? I'll look again but I didn't see anything about it in the FSM.

Thanks! - Art

If I remember its like glued in the corners.I have a spare in the harness at the other garage if I get there Ill look as I dont want to pull mine down in my car.Rocky