'72 rewire, especially the AC harness

[19brownie92]

I just finished an complete rewire on my '72. I used a "upgrade kit" so it replaces the panel with blade fuses and a few other niceties. My problem is this;
The kit did not come with a new a/c harness. Mine is in good shape so its was no problem. It a pretty much stand alone harness anyway.
The new dash harness had a Brown wire that replaces the factory brown wire in the blower switch. As far as I can see this is the only place the A/C harness connects with the dash harness.

In my old configuration there was/is a heavy orange wire that came from the A/C harness to the fuse panel and was plugged into a blade connector. (no fuse) I assumed it was the power feed for the A/C harness.

I am not convinced that it was the factory config. but it all worked. On the new harness I connected the orange wire to power and nothing on the heater/ ac works.

I was looking at the diagrams on the forum and it looks like the orange wire (14OR) goes to the blower.

Any help would be appreciated.