Anyone have any experience with these? They're installed in the head unit cover consisting of 4 of them. I can't get the air temperature and oil pressure to come on but the other 2 work.( oil temperature and water temperature) I'm currently trying to upload some picture but I'm struggling.

 

I wanted those guages but found that Rick didn't carry them any more. I heard that the guage manufacturer went out of business. You might need a specialty shop.