No place for a decoder on the PC board. 

Does Bachmann have a brick and mortar store Phila.?  I'm 15 miles outside Phila. 

http://estore.bachmanntrains.com/index.php?main_page=popup_image&pID=1362

Would this new part and a decoder make it DCC? 

Thanks for your help guys.

I just bought a Dash-8CW Spectrum DC loco.  I run an EZ track with EZ DCC controller.  When I put the loco on the rails the lights come on on and make this crazy sound.  Motor runs fine and turns well. I took off the shell and un hooked the motor wires.  Place it back on the track, lights still on and same sound.  I notice the two (pair) circuits (lite brown color and round shape?) were very hot and smelled like the were burning.   The loco runs on button 10 analog on EZ Command.  I haven't run the loco more then ten seconds.  My two other Dash-8CW run fine, they are both DCC.  I do want to put DCC in very soon.

Any ideas for a newbie?

Thanks