You did the first step, check all the fuses. Next, I would pull fuse 30 out for 15 minutes to reset the radio. Then pull the radio head and check for power and ground. Do you have a factory amp? If so, need to check power and ground there also. Does the radio turn on and no sound, or the radio look dead? Do you have navigation radio?
Let me know what level radio you have, and I'll find the connector view for powers and ground.