I would like to add a sound decoder to my Southern Pacific 4-8-4 GS4 locomotive. Has anyone done this? If so, what decoder did you use. Any installation tips would be welcome. I have never installed a steam decoder. Thank you

I am considering purchasing a Bachmann GS4  SP Daylight 4-8-4 DCC equipped. Can anyone who has one tell me is it difficult to install sound? and how large a consist it can pull. I have not seen any reviews on this locomotive. I have a 14 car post-war Daylight consist. Thank you

I just purchased a Bachmann DCC ready Pennsylvania RR 4-6-2 K4. There are no instructions for installing a decoder. Are instructions available?

I have a Bachmann 2-6-6-2 with Tsunami sound. I do not know the default CV values. Can someone tell me either the values or where I can get them. Thanks