I can try pulling the wire/fuse thing out again and see if the car will start, but I'm almost afraid to tempt fate. As I wrote, all's well that ends.
Although I bought the car second-hand, I don't know of any after-market add-ons. The only "different" things are that it has Litronic headlights and heated seats. No phone, radar detector or other items. Maybe the original owner had a Lojack, or phone and pulled it before selling it.
Regarding the CD changer, there are a couple of hex bolts attaching the CD changer mounting to the firewall, but I took them out and the changer still wouldn't come out. I'd like to take it out and check the wiring (saw that on another old thread) but can't figure out where else it's attached. If I have to pull the spare tire to reach more bolts, forget it. I'll sing to myself or listen to NPR.