I recently installed a Seymour Duncan Basslines Musicman replacement system (pickup and preamp) in my stingray bass. After installing it, I've noticed that when I touch the pickup pole pieces I get a buzz. It turns out the the pickup poles are not properly grounded. The wire that was glued to the Alnico poles detached. I'm trying to ground the pickup properly. However, it doesn't seem like I can solder the wire to the poles because the solder is not adhering to the alnico. Is there a special glue I can use. I don't want to have the glue come between the wire and the pole piece disrupting the connection. Is there anything I can do to properly ground the pickup? Right now I have the wire taped with aluminum tape to the poles. However, this is a temporary fix because the tape will eventually come off as it is doing now. Thanks for the help.