I have had my navigation system for a couple of months and went to start my truck this morning and it was dead. I checked all of the fuses and they were good. My question is, what can go wrong with them? Is there a fuse inside of it that can blow? It wouldn't light up or anything. Thanks.

 

You happen to check if the harness on the back of the unit is either loose or came off?

 

Yes, I checked that. I even plugged my old radio in and it worked fine.