Can anyone tell me which two wires I need to join together to have slow speed wipers?
Should be easy to solder or splice into at or behind the original wiper switch.

Basically, I have a friend whose wiper switch has broken yet again and he does not want to pay a wrecker $70 like last time 6 mths ago.
He is happy just to have an on/off switch installed so he can get to work when it rains.