have you tried a new reciever with the new radio? try this. unhook your reciever from your speed control and then put your speed control in to the set up mode. If it acts like it is supposed to, then turn off the speed control and plug the reciever back in. Try it again. Does it go through the sequence by itself again? If you have not changed out recievers then i would try changing them out. it could be a bad reciever and not the radio itself. Let me know how it turns out.