Nautic Logic GPS

[Taheskett13]

Recently installed GPS on my 2013 R20, its about 3mph off. Nautical Logic told me I would have to calibrate the speedometer. Any advice or has anyone done this when switching over to GPS?

[greenlightning]

I recently purchased the Nautic Logic GPS for my 2013 RZ4, but can not find the harness to plug into. Can someone, please, direct me to the spot?