Is it possible to reverse this process? I operate using conventional DC and have a kit built loco purchased on a well known internet auction site. The loco is a DJH kit for a BR 78xxx 2-6-0 and is fitted with a DCC chip with four wires - black, grey, red and orange. I wish to remove the chip, reverse the polarity of the motor (runs reverse when controller set forward) and fit tender pick-ups. Any suggestions would be helpful.