I just picked up a 1997 Saturn SC2 with 143k miles on it. The car is an automatic. The only way the starter will crank is if you hold the LOCK button while you have the key turned to start position. I was told this was a kill switch wired up by someone but don't really believe that. It has an aftermarket radio installed in it that will not power up unless the same LOCK button is pushed. As soon as you let off the lock button the radio shuts off. I had to jump this car at the auction to get it home. I put it on the charger for an hour and the car started everytime by hitting the LOCK button. A customer drove it today and it ran out of gas. I put gas in it and it started but he stalled it because it has a hesitation problem. Would not restart even with jumping it. Came back 20 mins later and the car started. Got it home and would not restart. Put it on the charger and still would not crank, just a clicking under the hood. The alternator is charging, the battery is less than a year old. Not thinking the starter is the issue and don't want to replace it for nothing. I try wiggling the shifter but nothing happens. I can't open up the link for the "thingamabob" so I don't know where to mess with that at. I am going to start checking things in the post but would like to get some input also since the LOCK button has added a new aspect to this problem.