The 65001 is in my LGB 21181 Mogul. It is pre-DCC and had to have the original circuit board cut out and replaced with a decoder. I have been away and unable to mess with it. I will try again this weekend.
This Mogul is the LGB 26194. It has the factory installed decoder and sound, which apparently cannot digitally remap the sound functions. They are probably hardwired in to a function address. I may be able to rewire them if the functions go through connectors, but, this may affect the track reed switch triggers. I doubt I will be able to figure this out without the circuit diagram which I probably will never have access to.
Sorry if there was confusion. I tried to put them in separate threads.