Originally Posted by dasaabguy
Dug a little deeper and got some more info on the brown wire. The brown wire is coming from the wiper relay. There is a thick brown wire and a smaller gauge brown wire coming from the same spot off the wiper relay. The the larger brown wire goes to the wiper stalk.
Posting this up for documentation purposes and maybe it will help someone out in the future. A 1987 900 turbo conv landed in one of my local boneyards recently and I was able to confirm the brown and orange wires mentioned above were hanging disconnected. This reassured me that they are not needed ( in CA atleast).
I'm now working on AC delete.