Quick question guys, I have a 3DR version 1 air telm. module that has 4 wires. I need to find out what the terminals are on the 2.5APM. It looks like the inboard pin is VCC and I assume the outboard pin is ground. I am not having any luck at what the others are so I can hook it up. Can you guys help me out on the pin layout on the APM 2.5?