Solder Cable to Speaker
A 2-pin JST cable is used to extend the cable from the mini oval speaker. Clip the original mini connector off the end of the speaker wires and aim for the following wire lengths:
2-pin JST plug cable length: 2 inches
Speaker cable length: 3 inches
If your speaker cable was clipped shorter than this, you can compensate on the JST cable side, for a total of 5 inches.
Put some heat-shrink tubing over the JST wires before soldering to the speaker wires. Once the connections are soldered, slide the heat-shrink over the exposed part of the wires and apply heat.