Ac wiring for the 86 720

[Toxic2597]

Hi, I'm new to this form and maybe I'm just not looking hard enough? But I'm looking for some help. Recently I picked up an old 86 720 and the guy before me had the ac running at 1 speed through a switch that he put in the dash because the stock Ac controller didn't work. Well I'm looking to buy an new controller and I don't exactly know what I'm doing wiring it up, would like help fixing this

Edit: here is what the setup currently looks like, sorry for the poor angle

green is wiring, red is the switch

[xeroxcat]

Here is the AC wiring schematic and diagram from the 86 720 service manual, haven't really touched my AC wiring so probably can't offer much else though