Pwr window switch in '85 Chevy K10

Ok guys I need your help again.

My passenger side window switch isnt working however the window goes up and down fine with the drivers side switch. I bought a new switch thinking that was the problem. Still doesnt work. I noticed that I'm missing a wire connection from the passenger side switch and I think this is my problem as no 12V source is activated with the passenger switch. When looking at the switch there are 3 poles on one side and 2 on the other. The side that only has 2 poles is missing a connection to the top pole. I would assume this is a keyed 12V positive source. I wanted another opinion before I run a wire from the fuse box to the switch.


Thanks