Hey guys and gals, really new to the hobby, and just picked up a number do dcc onboard engines, and now wondering what the process is in installing sound decodes in them.  Does the tsunami 750 replace the dcc decoder or do they work in tandem?

Very little specific information I can find online bout this

Tried searching a number of forums again with little results

Any help is appreciated

Steve - shivering in Canada - Landry