American Bosch wiper motors

Ok. Fairly simple question I think, but I wanted to get your opinions. I have American Bosch 12V wiper motors the PO had replaced the vacuum wipers with. Since they were never hooked up and can not find any info on them I was going to install a single pole toggle switch to turn them off and on.

My question is "Does anyone have these motors and do they work well?" Also, would a "heater" type rheostat switch work in place of a toggle. I was thinking of purchasing one but did not want to waste $20.00 if it will not work. The switch rotates at three different amp settings and in my simple head seems like it would allow the wipers to work at three different speeds.

Anxious to here some view points on this.

Thanks

 

Thinking 1 of the posts is park. Then slow and a little better but still slow.
Mine run through a toggle.

 

Or great now I have a wiring issue with the wiper to figure out like the turn signal was not bad enough!! Guess I'll have another

Thanks

 

Just went and looked at mine they arn't Bosch, there Mitsuba. (?)
2 poles on each, one for a ground the other is hot.