I received a Weaver E8 AA set yesterday. On the rear of one of the engines there is a small wire sticking out with a small plug on the end. On the other A Unit, there is no place to connect. These engines have a PS1 type setup inside. The wire in question is fed through the chassis and connects to the rear of the speaker. The speaker is also wired directly to the boards with a 9v rechargable in between. Both units are powered, both have the sound setup, but only one has this wire coming out. Any ideas? Thanks.
Joe