Mystery solved! I finally had some time to tackle this, and what it looks like, is that the wires that I posted at the beginning of this thread were the internal wiring from inside the mirror itself, and when they replaced the power mirror with a manual mirror, they just yanked the wires out of the old mirror so they wouldn't have to open up the door panel. So when I opened up the door panel, I found the nice familiar 10 pin connector way down inside the door where it belongs! So I removed the old cable, plugged in the new (used OEM) mirror and now I have a working power mirror! Thanks all for your help and the wiring diagrams. Now onto the next issue!