Rear wiper control.
 

Hello everyone. Just picked up a 94 rodeo and I can't seem to find the button/knob to control the rear wiper. I looked up the switch on line and appears to be a button/rocker switch in the dash below the steering wheel on either side. There is a button on the left for the rear window hatch release and one on the right for rear window defrost but no button for wipers. All of the switch knock outs are in place so no empty holes. I'm at a loss. I know the turn/cruse assembly has been replaced with aftermarket, but all of those i have looked at are exactly what I have. Turn/high beam on the left, cruse control on the right. Any ideas?