(I snagged this from the car audio section)

1994 E420.

the radio was working perfectly fine the other day. I go to turn it on today and nothing. The red alarm led wont even flash. I hit the power button and it dosent turn on. I checked the fuses in the box under the hood and they all look to be okay. so whats up? its acting like its not getting power. Are there other fuses to check?