The best thing to do is bring that toy to ur nearest electronic technician and look where the disconnected wire could have been soldered! By looking at the board u might where it came from, the other wire should be in the POWER( + ), as you said it came from the SWiTCH! The other one, antennae wire must in the ANTENNAE itself! You got only 1 wire w/c is the main prob. that goes to the circuit board! Taah!