I have today fitted a Hornby Lord Nelson Class "Lord Rodney" 30863 with a TXS 8pin decoder, speaker and power bank. All very straightforward, but I extended the speaker wires using a 1.25mm plug and socket. This enabled the speaker to be fitted in the loco under the chimney, rather than in the tender - nothing worse than sound coming from the tender - and it is very obvious.🤥 I may rewire the speaker as the new socket sits under the cab floor and catches the track in one or two places.