on a 1998 blazer does anyone know where the interior light module is

Also the rear hatch relay

on a 1998 blazer does anyone know where the interior light module is
Thanks

It's part of the wheel switch that's by the headlight switch. To get at it, remove the two screws by the top of the speedometer, then the front dash unit facia is removable - it's a snap fit thingie.
Next, you'll be able the see that the wheel and light switch are separate units. You might be able to get replacement parts at Napa or Autozone (cheaper than a dealer)