Pump 1 gets twisted pair going right to starboard headrest. Pump 2 gets red to starboard headrest and black to port headrest ground. If thin ground wire ever failed going to starboard headrest, can still run pump 2. Since wires are not twisted on pump 2, if there is any noise in the headsets, that will be a added bonus to remind that pump 2 is on.
Y9-03-22
Y9-03-22