Water Temperature Gauge Not Working

So I finally replaced the voltage regulator today. And I still have no temperature gauge or fuel gauge working. I also replaced the temperature sending unit and grounded the new fuel sending unit and yet nothing. Also, I replaced all the instrument cluster bulbs and still have no gauge lights. The parking brake indicator light works, speedometer works, ammeter works, and oil pressure light works. Do the parts of the cluster that are not working come off of a single fuse in the fuse block? I am going to go through and replace every fuse tomorrow. Is there a ground or connection that I might be missing? Oh, and taking the entire instrument cluster out was real fun!