gunrunnerjohn posted:Sounds right to me Rick, it's a pretty simple conversion. If the Aux Tender is a PS/1, you will need a new coupler. For PS/2, a 6V bulb will be required for the backup light.
John, I traced the wiring in the main tender back to thevtether that connects to the aux tender. The light bulb appears to using the center two wires and the outer pair is used by the coupler. Is it possible that there is no wiring change needed? Simply a matter of connecting the new coupler and the light in the aux tender?