Well, I found a Hertz 12" XS HI-ENERGY 300 D speaker at a garage sale. Looked pretty impressive, but I didn't notice one of the leads going for the wire posts to the inside was cut.
Is there a way to fix this, solder?

 

is the wire still there??? you can solder it together yes. did it to mine and still works good.

 

That wire is called a tinsel lead... and yes, just solder it back and you're good to go!

 

Great news!
Yes, there is about a 1/4 of an inch sticking out from the cone.
Thanks!