Turn key to 1st click radio works start car radio goes off and stays off?

Turn key to 1st click radio works start car radio goes off and stays off?
This may involve a problem with fuze #10, a 10 amp fuze, which services some sort of controller along with a auxiliary heater water pump. Normally, if this fuze doesn't work, when you drive the car the radio won't work, the inside courtesy lights won't work, and the ability to "flick" your high beam won't work.Various sources indicate that often the auxiliary heater water pump is defective which causes the fuze to blow. If the fuze is good, then there is something else happing.