Starter stays engaged ONLY in park???

PROBLEM SOLVED!!

Ran the wire coming from the #9 windshield washer cavity to the ignition terminal, and switched the large red battery wire coming from #16 to the battery post. Starter functions as it should and disengages in "run."

I can't thank everyone enough for their help and sharing their knowledge. Boy, did I learn a lot in just a couple weeks. I've always hated electrical because I didn't understand it. Well, I still don't really understand most of it, but knowing more gives me the confidence to keep at it. She's not ALL figured out -- still lots of work to be done electrically -- but this was huge.