I'm pretty sure mine is toasted. I'm going to a junkyard that has 3 old Z's and want to know if I know how to check if they're good. Does the whole thing turn, electrical connector and all? Or does the connector stay and the 1/2" x 2" long metal strip with the wires wrapped around it turn by itself? I put the metal strip in a vise and it won't budge. Put 12 volts to it for at least 5 minutes and still no movement. The only way I see it could turn is where the connection slides in the housi