I installed a 6000NEX in my truck in September, 2014. At that time the firmware was at v1.03. In early November, 2014 I flashed the unit to v1.08. Since that time the Speed Limit displays 50 MPH when the actual speed limit is 65, 75, even 80 (Texas) MPH. I had to turn off the audio reminder as it was non-stop "You're exceeding the speed limit" , blah, blah, blah. City driving yields a 40 or 45 MPH on the Nav Screen, no matter what the posted limit is. With the v1.03 firmware, the "posted speed limit" was pretty much what the Nav Screen displayed. If the posted was 65 MPH, the Nav Screen report