Thanks, Rocketman!
I found a couple bulbs still in a package in the glove box. When I get some time, I'll see if they were purchased for that purpose and the previous owner(s) got scared off by the location.
Shoot, I may, too. For now I've got an El-Cheapo Wal-Mart special lamp clipped to the vent and pointing at it. It's too blasted cold to not run the heater these days
And I may have the chutzpah to stop asking so blasted many questions .... lol. For one thing, I did find the owners' manual in there too