My BJ73 has headlight washers mounted underneath the headlights, there's a reservoir with some dirty water, a pump underneath, a controller next to it etc. but no switch on the dashboard. I know this switch should be to right on the panel underneath the a/c and ventilation controls. I guess I can get a switch online, but I looked for the wire connector and can't find it. Where would it be? There's a spare connector from the wire harness for the rear fog light, but nothing else. Where should I look? What does it look like?