Im not sure what that exact model is setup like, but typically Pioneer has a red for the switched power wire, yellow is the constant power wire, blue is usually power to an external amp. The speaker wires should be a set of greens, purples, grays, etc., where one of the wires has a line down it.
So one green may be a positive, while a green with a line would be negative. Youll have to play around and test it with the balance settings to determine left or right/front back, depending on how its setup.
Hope that helps some.
Jeff