My wife told me Santa Claus is bringing me a Flytrex Live 3G for Christmas and I can't wait. I've been reading up so I can have it up and running as soon as I get it. It says the Flytex has to be soldered to the main board...since I plan on using it on two different Phantoms, does it have to attach to the main board for technical reasons or can I use the auxiliary power wire? Logic tells me that it just needs power but since it provides telemetry maybe it needs to feed off the main board. Help please !