Can I use one of the 3 GP inputs on a D180 for a voltage 1-5 input? Most of the installation manual is using those for thermocouples or resistive inputs. Also read something about having to have a HS34 module to use those inputs ports. Not sure what that's all about. I am planning to use a FlightData L2e adapter to indicate engine Timing degs on my D180 if that GP will accept a 1-5 vdc signal. The module is marketed as a Electronic Ignition to EFIS adapter. Thanks for your help.