Hey all. I have a 1985 RX-7 and the orange clock by the climate controls is properly backlit, yet the clock displays nothing. I've heard that the solder joints in the cluster could go bad, but I've also heard that fuses could be the issue. Could anyone shed some light on to which fuses? I am missing the fusebox cover and I've found '85 diagrams but none of them seem to match up with the setup my fusebox has.

On top of that, the door buzzer comes on intermittently, and only when the door is closed instead of open. The interior light also pnly works when it wants to, but I suspect a dodgy solder joint to the bulb (I've seen it and it doesn't look pretty). Any help would be appreciated! Thanks!