So, I went today and dug up the replacement mast I'd bought,
tore apart the back end and got it switched out...
was kind of a pain in the ass, but finally got it. Woo!
Now, I can't seem to figure out why the antenna isn't raising when the stereo is turned on.
I've got it connected right into it (not factory - cd deck) and the new antenna just stays all the way down.
Might be the motor's bad...if so, screw it - I'd rather just have it stay down than be stuck up like it was.
At least I figured out that my cargo area light was just unplugged - not out, in the process.