We to an RV show today, radio and maps were working fine when we parked, but when we were leaving, the screen was black. I assume it is a fuse problem, but have not gone to look, and won't until daylight tomorrow.
Has anyone had a similar problem, if so was it the fuse, and where was the fuse located?

 

For what it is worth, I got tied up this morning and my wife took the Citadel to meeting this afternoon. She came home and I was a hero, the radio and GPS worked both ways, all I said was that I was pleased to have fixed it.
I'm guessing there was some type of short or poor electrical connection that re-seated itself in the cool weather overnight.

 

Check the connection on the IOD fuse.
See https://dodgeforum.com/forum/3rd-gen...onnection.html

I had this problem and found that one of the spade terminals of the fuse did not seat onto the male spade terminal and was just "seating" on the top of the terminal. Lost power only on real hot days in stop and go traffic.

If you remove the fuse make sure both sides of the fuse fully seat onto the spade terminal on the fuse block.

Kevin