We have an 02 Alero, That likes to play games with me... Today it wouldnt start, cranks over and then dies... but then after about 10 min of trying it starts out of the blue.... and runs fine. except for the dashboard.... No Gauges, no Radio. nothing.......
Parked the car again and then it wouldnt start again... someone please help me and point me in the right direction...

 

Could be a worn out ignition switch. When these go bad, they cause all sorts of weird symptoms.
Another possibility is a BCM starting to die.