Is it that simple?  I am new(ish) to model railroading.  About 20 years ago I built a small N layout on a door.  I was fun for a while.  Got bored and sold it.  A few months ago I came across some old camera stuff and traded it for store credit at a camera/hobby store planning to buy a small set to tinker with.  I thought I would start with something simple so I picked up a Bachmann Durango and Silverton set.  Simple right?  Not 2 days went by before I discovered DCC with sound on You Tube.  My whole world has changed.  I went from an occasional putterer to a full blown addict.  My hobby car is now listed for sale so I can make room in the garage for a 6" X 12" layout and as soon as it's sold I'll have the $$$ to do it.  For now I have the 0-6-0 from the Durango and Silverton set.  It looks like any Bachmann tender will connect up to the engine and I see that Bachmann sells tenders with a DCC decoder already installed.

If I replace the stock tender with a Bachmann DCC equipped tender will it work or is there more stuff that needs to be done?