Which wires for high level output?

[DunDan]

Hey guys I need help....I've tapped so many wires but don't know which are the right coloured ones for high power level output for the rear speakers!

[DunDan]

I've confirmed speaker output for rears:
Left rear high range yellow/violet and yellow/gray wiers
right rear low range blue/gray and blue/violet wires.

My "vampire" taps were a little loose so anybody tapping...check those first!