Radio is dead

OK guys I'm chasing some electrical gremlins around and I finally got everything worked out except I have a dead radio. I checked the Radio fuse and the Amp fuse and they are both fine. Is there any other fuses that would control the radio that I'm not seeing, possibly an internal one in the radio? Any other ideas would be great.

Have you been able to verify that your supply voltage is reaching the fuse?

well it was working about 15 minutes ago and then I had to replace a fuse for the tail lights and dash lights etc. and when I restarted the car there was nothing on the radio, I held my multimeter in the fuse slot for the radio and was getting nothing there so is there a fuse under the hood that would control that?

What year is your GP.