I am in the process of upgrading a ABA set of Proto sound E-8s. I am not using the smoke funtion and I am using the existing contsant voltage board for all of the lights on the trailing unit with the inductor in the power line. By doing this it appears to me that I can use the existing 4-wire tether since the only funtions going to the trailing unit are the motors and the coupler. A yellow and white pair will go back and the rear coupler funtion on the upgrade board will go back. All of the wires on the 10 pin plug on the slave board are serving funtions that I am not using except for the yellow and white wires for the motors and I do not need the coupler funtion , it is being passed through from the lead engine. Will this work?
Thanks,
Trains41