Truck is a 2500 on it's second motor. Motor was installed years ago and has 60K uneventful miles on it. Tonight it ran fine for 30 minute drive to run errands. Upon attempt to start, it acted like it had no fire. Also, and this is the weird part, no headlights, dash lights, interior lights or radio. However, the under hood light, brake lights, power door locks, power windows all worked. Checked the fuses with nothing blown. Not a battery issue as it will crank strong, just no juice. Recently had the electronic control module in a ford go bad and acted the same way except it burned a fuse to give me a hint. Any ideas where to start looking would be greatly appreciated.