Yea, either it's the fuse or your radio is dead. It cant be anything else
Toyota Wheels
Can't ? Well it could be a connection failure, Dirty fuse contacts, Possibly an amp issue, Or just the power switch on the headunit ............
Apply some PB blaster and let sit overnight, Apply some even heat with a moderate torch and they should loosen up for you. Remember to make sure the fill plug is worked on first, You would hate to drain and not be able to fill.