Gunrunnerjohn
I don't know without doing a "wire list of the internal connections . It is a Rev C. It was not offered as a solution by Lionel Customer Service.I also found that backplane and asked specifically about the extra wire and where does it go and got a reply that it went to M1-21 which on R2LC radio board is not connected.
It seem that GGG have added that his locomotives had different backplanes such as PCB1-09F and PCB1-0B9
I need to see them to see if they will work as far as mounting holes locations.
Thank you for the help and reply
Jim