So the Dynavin N6 will only provide GPS when the vehicle has factory NAV?

I have a non-NAV with DSP. I was looking at the N6 so I could ditch the Garmin GPS on the suction mount.

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!