430 Dashboard gauge lights not working

Everything else in the car works, and all interior lights… Only the gauge lights aren’t working. I’ll admit, I haven’t driven the car in the dark in over a year, so who knows how long it’s been broken.

I checked the two fuses in the frunk, they’re fine. I’m fearing it’s most likely the light panel itself in the dash. I found a replacement on eBay and ordered it just in case - it wasn’t expensive, and I figure these things are getting harder to find anyway…

So my two questions are:
1. Anyone else have an idea on what to check for?
2. Assuming it’s the light panel itself, anyone have good instructions on removing the dash cluster?