I have a 1996 Jeep Cherokee, 4L, 4WD, Auto. My problem is the ignition switch. I can turn the key to the accessory position but not the on position. Works sometimes with a lot key wiggling but not steering wheel wiggling. I suspect it's the lock cylinder. I have a FSM so I thought I'd take things apart and take a look. But I can't even get past removing the upper and lower steering column shroud. Anyone know what kind of screws are holding it together? Neither a flat blade or Philips don't feel like they are seating into the screws. Also, any other hints after I get that apart?