I've just received a 3DR GPS with compass module and I'm trying to hook it up to my APM2. I am a bit confused as to which connections I need to make and I was wondering if anyone could clarify this for me. I'm thinking of splicing the cables coming from the module to the pin headers on the APM2 but I can't find a pinout for the 6-pin GPS or the 4-pin compass connectors. The Eagle files in the store are still for the older GPS-only version of the module. I'd be very grateful if anyone of you could point me to the correct pinout for both connectors.
Also, according to the description in the 3dr store, the GPS/compass module has an onboard 3.3V regulator. Does that mean that I only need to provide the GPS with +5V (and don't run an additional +3.3V line from the I2C port on the APM to the compass?)