if you are talking about the indicator at the upper right then you could have the outer bezel painted. as for the card it looks like an old Keikheafer unit and I dont know if the card is available but they show up from time to time used. the trim switches do not carry any real load, maybe a few amps. they trigger a relay in the engine that moves the trim pumps. the switches on the throttle handles only have maybe 18 gauge wire in them so what does that tell you.