Bypassing a potentiometer
For full volume, you would turn the pot fully clockwise.  The arrows between the pots indicate that turning the pot clockwise moves the wipers up, so you should connect pot terminal 2 to 3, and 5 to 6, or connector terminals 1 to 2, and 5 to 6.

I would expect that connector terminals 3 and 4 would be connected to circuit ground.