Check the fuse panel(#10 on the attached diagram) to ensure the radio fuse is functional and not blown.
If the led's on the stereo light up but no sound comes out, check the amplifier which is located in the trunk under the left side of the rear shelf. Make sure it is getting power. There should also be a fuse for the amplifier; make sure it isn't blown.
What other items aren't getting power on the dash?