Ok guys I have been toying with an idea and would like ur opinions. I purchased a Spot Trace for 50.00 on a holiday sale very cheap and seems to work but a tad heavy. Up to this point I've had it strapped to the underneath, well today bored at work I went to tinkering. And stripped it down. Very easy to do. And very very light. This unit can be powered by either aaa batteries or a hard line that I'm thinking I will wire into the phantom. My question is this since this unit doesn't use cell towers and send and receives via gps, if I mount it in the P2 housing will it interfere with the on board gps and cause me problems. I have added pictures as well of the strip down.