Front USB port stopped working

Upon starting our trip from Florida back to Texas, I could not get the Android auto to work. We messed with for a while with no luck. Phone also shows a " Check USB connection" when you plug it in. Tried 3 other cables and another phone with the same results. Since the front USB is a connection to the head unit, I am assuming it is not fused since the other functions of the head unit are working.
Saw a couple of posts on other forums with a similar issue and it was a USB harness that was replaced under warranty. My warranty expired so I want to try and get this fixed without involving a dealer.
Does anyone have any suggestions on where to start?

 

needed as a connection to android auto.

 

UPDATE.
Went out this afternoon (3 days after it stopped working) to look for fuses or anything else obvious that could be causing the problem. Plugged the phone in and everything was working again as it should. Certainly not a fuse as they don't heal themselves.

Still not happy with the flakey performance of the Android Auto head unit and will likely end up putting in a android head unit like my last Prius had. Not many choices to be found for gen 4 Prius' but at least a few showed up in my searches yesterday. I searched last year when I got the car and found none.