I have a N&W J with DCC Onboard. While I currently am not using the DCC function, my club is currently transitioning to making DCC available on it's lines for some members while retaining DC for the older locos for others and I need an engine/decoder for both.

I'd like to add an MRC 1007 DC sound decoder that plugs into an 8 pin DCC socket. This decoder comes with it's own transmitter for activating sound effects instead of relying on DCC controls. I want to know if it's possible to piggyback both decoders or if I am forced to choose between one or the other?