I have two questions regarding my SD-45. First, how do I reset the decoder to factory defaults?  Second, I bought an MRC deisel sound only decoder to add to this loco, and I'm not sure where to connect it on the circuit board that came installed in my SD-45. Any ideas?

Thanks
Troy

I have a spectrum sd45 DCC installed. I want to replace the factory decoder with a sound decoder, but can't seem to get the shell off. Can someone tell me the trick to removing the shell?

Thanks

Troy

I have an SD-45 that came equipped with a basic decoder. I would like to change this for a sound equipped decoder.  What brand/type of decoder should I get?

Thanks

Troy