Yin and Yang
So, the three NEO-6M GPS Modules I ordered, to pair up with the AIO, have turned up.
A little bit of work to connect the two – I have to pair two cables that came with the AIO,
TX3/RX3 next door will go to SNAP module.
Although, you do know that you can program an Arduino over the air with a SNAP module! So I might look at the FTDI port as well as an option.