I have 2 Stop Blocks in Layout. I want loco to keep Lights on and any Idle sounds in may make. I know it talks about a 25 ohm resistor in the Lionel book but how is it bypassed once the train is ready to go. I was going to utilize A-C for "Idle Power" and an IR sensor to turn that off and turn on A-U. I have KW and ZW transformers and run 99% conventional. I have 2 Phantom III's. Was hoping to make this work for everything.
Thanks in advance
Rob