Wiper switch

I'm hoping I have put this in a correct thread.
Does anyone know where I could get a windshield 3 speed wiper switch?
I have rewired the car completely and I can seem to get it to work properly. I have run an additional ground to the switch panel bracket and have checked the wire on the motor itself. I am currently at a loss and thinking it may be the switch itself. I replaced the motor a few years back and I don't suspect that since it rarely sees any rain at all.
Thanks.
Author: mrmopar340