Hi how do I tell what navagation system my 2015 cx 5 uses it currently has a jap sd card maps by tmi I can get a nz sd card but says will only work in tom tom units unsure if that's what mine is it's a infotainment unit with dail by shifter

 

Post a photo of your audio unit.

 

From my quick search for jap import CX-5's, it looks like a NZ satnav SD card won't work as none of the vehicles I looked at had the same style Tomtom stereo. You would be better of either buying a Tomtom or Navman to stick on the windscreen or buy an aftermarket double din stereo with Apple carplay and android auto.