hmmm, there certainly are too many wires on that balance plug, there seem to be six wires on that plug, I'd imagine that's the four required for balance charging plus the main pack + and - leads...
the safest thing to do would be to check with a voltmeter which of those wires shows 11-12.6volts ...
have a look at this picture, I'm pretty sure what you have there is this typical setup, but with a balance plug that includes the two 'extra' wires shown here...