I just installed the GMNAV2 into my 2015 GMC Terrain and so far so good. The installation took about an hour most of which i spent hiding wires because i put a Fire TV box in the car as well(couldn't let the HDMI port go to waste). The navigation is quick, responsive and can even get a signal in my garage. The HDMI puts out a good picture considering the resolution of the monitor and i was able to play Netflix, Amazon Videos, and Kodi with no issues. Also there is a code that enables video in motion for the HDMI port.....i don't use it but it makes a "Lock Pick" unnecessary which is always good.
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