Radio goes on/off randomly

I've been having problem with my 2010 Santa Fe radio recently.

I've read a lot of stuff about what the problem could be, but haven't seen many answers to fix the problem permanently...just possibilities of....whatever!

So far, the only thing I've read about fixing the problem was to change the radio.

I know for sure, it can't be a lose wire. If it was the case, the radio would shuts off every time I hit a bump and it doesn't.

In fact, there are no precise moment when the radio shuts off...it happens anytime even when the car is stationary and sometime it doesn't shut off at all for like an hour or two.

A lot of people seem to believe the problem could come from the fuses, but no one has ever confirmed that changing them fixed the problem. As far as I'm concerned, the fuses are well connected, but I haven't changed any of them yet.

Considering that the problem seems more common than I expected, is this a manufacture problem or does it take particular environment to end up with that problem.

Thanks