info. needed on a williams o scale 4-6-4 locomotive

[taki53]

Hi. I recently picked up a Williams by Bachman scale Hudson  Great Northern 4-6-4 locomotive and tender and I have a few questions. The unit came with an additional snow plow with a coupler. I'd like to find out how I can replace the one on the engine with this one. The instructions aren't good at all. Also is it possible to put real train sound in this unit? It comes with the true blast whistle but I would like to put some other unit that would give chugging as well. Any help or advise would be much appreciated. Thank you and have a Merry Christmas.

[phillyreading]

You can put a different sound unit inside but you must take out the WBB True Blas-2 unit so you have space to mount it and also so the TB-2 unit don't drown out your new sound unit. Electrical hook-up is up to you and reading the instructions carefully that come with a new sound unit.
I have not seen the snow plow device and your engine, so I can't comment on how to attach it.

Lee F.