Radio/tape Cd Player problems of the 2011 Ford Flex

For no apparent reason, the electrical on my dashboard went out. I was told it was called the front interface. It has never been mistreated, abused nor has it ever been exposed to moisture or liquids. I can't use or adjust the radio, satellite, cd player, nor the heat and air. However, the heat is on full blast and the Ford dealership I visited about the problem says they can't turn the heat off. I was told it was a front interface problem. This is a $600-$700 problem that I don't feel is the consumers'. My car is not that old. . . Is taken very good care of. Ford needs to fix this problem. The dealership says the part is on a month back order. If this is an infrequent problem, how come it takes so long to find this interface. Just wanting to let other Ford drivers know of this problem if they have experienced this as well. This is my fourth Ford vehicle and I'm starting to have regrets. Please give me some feedback about this interface.