S14 Gauge Cluster Lights not working and some others??

[AenjukuCar]

Problem #1
Well I dont have any cluster lights in my 95 240sx now at all, havent now for about a month. checked all the regular fuses, even changed the bulbs on the back of the cluster. The only fuses that i have not check are the really big ones in and out of the engine bay. I have all the warning lights are working on the cluster and light up fine. Right now the only lites that light up are the volt meter gauge, the apexi turbo timer, greddy boost controller, and the boost and water temp guages. Anybody have any other ideas on what could be up?

Problem #2
I have not had any HVAC lights, the ones that light up so you can see where the air is coming from. the little green and orange lights on them work.

Problem #3
I'm installing a autometer sport compact series oil pressure gauge and was wondering what else that i would need to install it or anything else that i need to know about it.