radio goes off and so does all the lights on center console

It is very irritating, when you have to drive long periods of time with no radio and this has happened many of times. And the dealership I first took it to did not doc. it at all. We have owned this car since it had 33 miles on it and this is not what I would expect from a brand new car.. And just had the radio control module go out as well.. That would have cost 700. and now they say to get it fixed I need a new radio screen that cost 400. install.. I am shaking my head here...