Cassette Player in Teddy won't turn on? Fix?

[corgiluver]

I have a 1st generation Teddy Ruxpin whose cassette player won't work. The spindle doesn't turn no matter what you do. The thing is, you can hear the speaker turning on, and I opened him up and tested for electrical current on all the wires attached to the cassette motor and they're still intact. I even used a bit of copper wire and made a direct loop from the batteries to the motor and got it to start up, so I know the motor isn't fried. Anyone have any idea what could be wrong and a possible fix?

Thanks!