Everything was working like normal. Got in to start up the truck, dome lights were on, put the key in and when I turned it, everything, including the dome lights turned off. I thought it might be low battery but battery was fine and even with jumper cables on, it would just cut off all electronics. Is there a sensor that would do this? A common short that would do it? Fuse that could be the culprit? Please let me know if you have any ideas. Thanks.