Rally Cluster Help

I have a 70 Cuda with a rally cluster and my issue is everything works but the 3 gauges -fuel, water temp and oil pressure, I tested the sending unit and its good in the gas tank. I can't see 3 gauges going bad at once so i think the gauges arent getting power, Can anyone tell me where the power feed to that set of gauges comes from and goes into to? I think if i can find the power source maybe i can fix the gauges. Pictures are always great
Author: KennyCuda