2010 grand caravan radio will not work unless I unhook the battery and reconnect then it only works for about an hour and does the same thing. WHY?

What is your question?

There doesnt seem to be anything that triggers this problem it happens just out of the blue. I was told about tipm issues but everyone wants $100 just to check to see if the tipm is the issue. I have no issues replacing it but if it's not the culprit that would be a waste of money. Ideas? Suggestions?

How long has your 2010 Dodge Grand Caravan had this problem?

3 or 4 months