The radio control system in Jack was a Deltang receiver which has stopped working. I wish to control the throttle and forward reverse and the whistle. I have a Fosworks Tx and Rx, can’t seem to find a way to control the whistle. My old remote control systems transmitter controls the whistle by pressing a button, which is also the bind button. This will control a.Spektrum six channel receiver. Is there any special way to manipulate the signal to control the whistle? I plan to power this with a 3S Lipo battery which requires balance charging which makes accessing the plugs to plug in the power and to plug in the balance charger quite difficult. I would welcome any suggestions and further discussion.