2001 Buick Regal Won't Start
 

2001 Buick Regal LS
Turn Key - hear a click. Won't start.
Internal lights on, no radio.

Mine didn't even click - was a bad starter solenoid
 

Check to see if you are getting 12volts to to the starter solenoid. Mine was but wouldn't engage to start the starter.
First pulled ignition switch but problem was at the starter. Replaced solenoid after a visit to the junk yare.