BACKGROUND: I have the Legacy PRR E7 AA set and add on Legacy powered B-unit. I want to add diesel prime mover sound to the powered B-unit but you cannot buy Legacy sound modules through Lionel's parts department. The add on breakdown unit does have sound, but it is not legacy. In another topic, I learned the breakdown B-unit's diesel sound can only be controlled manually. Also in another topic I learned about just adding a second speaker to the B-unit, running it off the sound board in the A-unit. This would require changing the speaker in the A-unit to match the ohm requirement of the sound board.
QUESTION: Can I order the sound module parts from the breakdown B-unit and install them in the powered B-unit? I understand I would have to control the sound manually (revs and volume), but that is acceptable. I would run the sound at a set level just so it does not sound "dead". If adding the sound module would not work, I will pursue the second speaker option. Thanks.
Ron
