Is there an electronic circuit or component that can convert the 3 wire white/yellow/blue from a DCC decoder into a 2 wire bipolar output? I have a Kato EMU that I would like to convert to DCC. I haven't seen the Kato FL12 decoder for the head and tail lights in stock. Also seems silly to put a second decoder in the same car. The problem with using another decoder is that the head/tail light are on a 2 wire bipolar circut. The last time I did this type of conversion I ended up scratch building new lightboards with SMLEDs that had the DCC friendly wiring.