Maybe you can try to open it up and solder a new wire in?
_________________
KIT: Tamiya TA05-3R
ELECTRONICS: Novak GTB V.2, Novak Ballistic 3.5T, Futaba 3PM 2.4Ghz FASST Tx, Futaba R603FF FASST Rx, Yeah Racing SVP-0010MG
SHELL: Tamiya Evo VI, Tamiya Evo X, HPI 350Z