I just purchased a S-2 that is DCC ready via eBay.  The model appears to be new in the box as I could not see any wheel wear and the coupler hoses have not been adjusted.  What I am wondering is which DCC chips can be used in this model?  I normally use the Digitrax DCC chip finder program to find a Digitrax chip, but none are listed for this model.  I normally use Digitrax because the model train club I joined uses a Digitrax system.  If another non-sound chip can be used, which one(s)?  I plan on running it with my DCC/sound S2 that I already have, so I do not need sound in both models.....   Thank you.