'70 E Body Wiper Switch Connections Rallye Dash ??

I think I remember correctly that one prong on the back of a 3 speed '70 E body rallye dash wiper switch is left exposed/nothing plugs into it.But is there only one way that the connections from the main harness plug into the wiper switch?Could someone post picture of the correct connections?Is it a one piece plug or 2 piece?I was thinking mine had 2 seperate plug ins?

If I read the wiring diagram correctly.
The 2 & 3 speed switches have a different pin layout, the wiring is the same.

2-speed
V3-18BR* goes to pin F1
V4-18R goes to pin A

3-speed
V3-18BR* goes to pin A
V4-18R goes to pin F1

3 Speed switch.

Diagram

Thanks for the pics Snoopy.Is it possible to have the small 2 prong? harness plugged in wrong?And is the top prong,as shown in picture,always left "empty"?

Quote:

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Thanks for the pics Snoopy.Is it possible to have the small 2 prong? harness plugged in wrong?And is the top prong,as shown in picture,always left "empty"?

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They only plug in one way.