I have an early Shay locomotive that has been converted to DCC. I have no knowledge of its history. I can not get my controller to recognize it. There is a switch labeled inc and dec on the bunker. Any suggestions?

Installing Digitraxx Tsunami2 in 3 truck Shay. Soundtraxx calls for 680 ohm resistors on the negative side of all LEDs. Since the Shay already uses LEDs, are they in place on the board or do they, indeed, need to be added?

Installing Soundtraxx Tsunami2 in 3 truck Shay. Tsunami2 calls for ground wire but there is no ground in the wiring connection list. The only ground I see in the DCC wiring diagram is the blue wire from the ash box PCB. Can I use that blue wire as the called for ground?

I recently purchased a 3 truck Shay item#82498. I am new to this. I have not lubricated yet so can not run. Does this have sound? Also it states it is DCC ready. What do I need to convert to DCC?