i have a 1980 305 Camaro. i am trying to find out why the gauges don't work on it like the oil pressure, engine temp and the battery meter. there is a lot of wires just hanging under the dash so looking for maybe a wire diagram of. the only gauges that do work is the speedomer and the fuel. the other spots are just all black with the emblem of what is is supposed to be so hell they may not even be in there i dont know. i hope someone can help and maybe put some pictures of what one that does work look like.

thank you

 

Pictures would help