At the request of a customer, a LokSound decoder with ESU 21 pin adapter board has replaced the original QSi decoder and factory DC board. Twin ESU 11x15mm sugarcube speakers replaced the round factory speakers. A 470 ohm resistor was placed in the +ve common wire and red markers (Aux 1 &2) separated from the white headlight/marker lights (F0f, F0r) for independent control. ESU style stay-alive circuit hardwired to decoder.
