Thanks Yardmaster...I will bone up on the Decoder installs. I really appreciate your help and patents with my questions! I will be returning the sound module to Micro Mark and buying a new decoder. Great forum you have here....I will probably be using it again!  Thanks!
Kevin

Ok I understand that. Sorry I'm kinda new to DCC.  So will it be a difficult task to remove the old decoder and install a new one? I mean will the original one just un-plug, or will I have to un-solder it? Is it possible to put in a new PC Decoder board from the current model? So this sound module will then just plug in, or am I going about it the hard way...and should just put in a whole new sound decoder as you suggest. Sorry to be a pain on this.....

Thanks again for the reply. I did forget to say that the Climax I have is a factory DCC version, if that makes a difference. (sorry) And also after further review of the conversion harness in the Walters catalog, it was the wrong item. (for a decoder to NMRA 8 pin plug)   I don't mean to be difficult here, but I am still not sure why a conversion harness wouldn't work from a factory DCC board to the new sound decoder. (If somebody makes such a harness) I guess the DCC PC board in my Climax just isn't configured for this sound module. (?) So the solution is to go with a (Digitrax) sound module and program it to the Climax sound.  Really do appreciate you help on this.

Thanks for the quick reply Yardmaster. Thanks for clearing that up.  But just to clarify... the conversion adaptor 22 to 8 pin won't work?  Thanks....   Or can I buy the decoder pc board from Bachmann and install it into my three truck version?

Hello, I am new and have a question about the three truck Climax logging engine. I bought a Three Truck Climax on E-Bay, and it runs flawlessly. So to get sound, I ordered a sound decoder  through Mico Mark. The advertised it for the Two Truck Climax, but I figured that the sound should match close enough, if not exact. After waiting for three month or better for the part on back order, it arrived only for me to find that the plug on the sound module is a 22 pin European (NEM 21?) style, and the DCC board in the Climax is the NMRA 8 pin style! My real disappointment was that I talked with a Bachmann Rep at the NMRA train Show in Portland OR this summer, and told him exactly what I was trying to do, and he never said it wouldn't work.   So my real question is...Can I simply use an adapter like is in the Walters Catalog  #745-135 to convert the two mismatches?

Thanks ACY and Len. I am confident enough to do the conversion, was just wandering if anyone has posted a "How to" segment. Ill refine my search and see what I come up with. Thanks!

New to the forum....Has there been any discussion on converting old style Spectrum DC engines to DCC?  I am talking about the ones with no provision fro DCC already on board.