Hi there. New to the forum. Got a 1980 280zx a few months ago and I'm trying to sort out some dash issues. The only guage that works is the speedometer. Fuel, tach, temp, oil, voltage, and the clock all do not work. No dash lights either. I've checked my fuses in the passenger footwell and I've cleaned the battery and chassis ground. Any advice on what to try next and/or if these problems are related?