K-line M-15 dual DC motors Looking ahead, will this work? System: Digitrix: Track Center rail + Side rails - M- 15 Wire motors parallel, to the decoder: DO487 Multiscale, DH465 4amp O & HO Not knowing what can be used/done with the decoder Assume? Any sound on the original PCB will be lost. Is it possible to find the PCB input for the sound & use it?