my nav system is not picking up the right data for the map or the compass

What is your question?

my navigation system on map has us not even near where we are, we are in the middle of fields between two roads. the compass is out of position 100% of the time. They have already replaced the disc and the complete radio unit. this problem is in a new 2018 murano

What makes this problem better or worse?

it never works at all

How long has your 2017 Nissan Murano had this problem?

2 weeks after we bought the car, 7 months ago