Radio HELP ! 81 cutlass Calais

[DUBWBC]

So I bought my first Gbody last year and as we all know it's a process I recently changed my ignition switch out now I can't get my radio to come on but before I changed it the radio was working does anybody kno which wire would effect that on ign switch or what fuse or wire would cause it not to turn on

 

[67rstbkt]

The radio fuse(s) will be under the driver side dash. They should be labeled; you can narrow down the issue with a test light or multi meter. If you are unsure of which fuse to check, just turn the key on and touch a test light to both ends of every fuse - if you find any with power on one side of the fuse only, it's blown.
The power wires at the radio end should be:
Constant 12v = Orange
Ignition/switched 12v = yellow
Ground = black