The installation manual states that none of the Skyview outputs provide sufficient power for the 472 but the draw is only .1 Amps and the EMS D37, pin 15 puts out 12V. Is that pin insufficient for the 472?
That pin is really designed for use as a very low current excitation power for sensors, not for device/module power. It only supplies .08A, so the -472 pulls more than it can provide. The -472 should be connected to ship's power.