Wiper switch

I have this -65 Barracuda. Now I cannot get the washer function working, so I plan on buying a new wiper switch. I have that 1spd switch, but it turns out I have a newer wiper motor, with 2 wires not connected. So I wonder if I have a 2spd + interval wiper motor.

Long story short, anyone know of a 3speed wiper switch that'll fit my Barry with my "old" switchknob?