Will these lost model alarms that are available work with the RTF models everyone is selling? I see they recommend not supplying more than 6 volts to the alarm. The ones I have seen have the voltage supply coming from separate receiver battery packs (with no greater than 6V). They plug in an unused channel on the receiver or daisey chained into a used channel with the servo. I guess my question is: What is the voltage at the servo connection on these RTF planes? If they are around 6v where does the step-down from a 11.1 lipo pack come from? The only other component in the plane is the ESP. Sorry for stupid question, but new to electric RC. Thanks for any replies.