Originally the horse car set came with an OTC power connector that had two metal clips that stuck up and connected to regular tube track. I had this set as a kid and I did not use this OTC piece that came with the set, but used the same remote control track you show in the picture. I never could get reliable operation from this car and corral. Currently have this car and corral just for nostalgia reasons, but have rarely used it as it is still not reliable for me. When I did run the set a few years back, I still used the remote control activation track you show.