Adding RailSounds to non-rail sounds tender?

Since they have an air whistle, it should be easy to remove that and install the ERR RailSounds Commander.  You already have track power, and since these are obviously conventional locomotives, that's all that's required.  If you want chuffing sounds, you will have to install a chuff switch, usually a magnet and reed switch on one of the tender wheels.  All of this comes in the ERR RailSounds Commander kit.

Go to this Link and then look at the RailSounds products: The Electric Railroad

Any places recommended for the kit?! And thank you!

Wait, I just noticed the link you posted in your previous message

I added a diesel sound kit to a boxcar and must say it sounds and works as good as the regular lionel railsound boxcar easy to build so i’m now going to build a steam sound kit into a non air whistle tender with the commodore vanderbilt sound kit

anyone by chance have a nice clean non whistle long tender for sale?

For the err steam sound kit, do you still need the chuff switch if mated to a err cruise commander tmcc board?

You always need a chuff switch with the ERR stuff, there is no capability to generate chuffs internally.  You can either use an existing chuff switch if the locomotive has one, use the reed switch and magnets glued to a wheel, or do it how I do it nowadays, I use the Chuff-Generator.