Here's a interesting fact, that I believe might be overlooked.
Does the onix, using the 360, require the gps/heading sensor puck.
The answer is no.Acually , the 360 will operate without any gps hooked up.
I'm presently using the internal gps from my onix, but later with hook the gps/heading sensor up.
I need the heading sensor for my navigation orientation, fishing ledges while stationary.
GPS alone doesn't do very well while stationary.

