EZ wiring (Wipers and AC)

[hickmanfab]

So I installed my Ez wiring harness a couple months ago, but I didn't need the wipers or heater till now (got to love cali).

So my question to you guys that installed it is how did you get the wipers to work and the a/c

I am installing it on a 82 K30 Crew.

I can't seem to get the wiper switch (on the column) talk to the wiper motor.

and I have ac crap on the firewall, but I just want the heater (if that is possible).

I tried searching and looking at diagrams, but I can't make since of them.

 

[Chevy305]

I did the EZ Wiring harness last year and as far as the HVAC goes, all I did was run the designated power wire to the dash switch and left the rest of the factory blower motor wiring intact. As far as wipers, they act on a switched ground system. Check out my write up: http://coloradok5.com/forums/showthread.php?t=181502&page=29

also these wiring diagrams are a huge help: http://brochures.slosh.com/wiring/

 

[hickmanfab]

thanks for your help.