Need power source for console mounted gauges

[cwelk87gn]

I am finally about to wire up my gauges and need a good key on power source and ground. Since I am mounting them in the console, I was thinking about tapping into the radio wires. Any thoughts?recommendations? I am just needing a power source for the electrical oil pressure gauge. Which color wire in the radio harness is hot with the key on anyway?

 

[Renthorin]

I used a flat terminal and ran it to the fuse pannel. There are two open slots there labeled for ignition. They plugged right in. It is a switched power source so they are only on when the car is on.