I jsut got this installed last night and from the first minutes of driving the arrow just goes off like to far on the map and then it catches up. Now today . It doesn't even pinpoint where my car is when its stopped. I tried adjusting it to where I was manually when I was at a traffic light. But it just screws itself up again. I take out the disk put it back in, nothing. I checked the signal on the antenna. Thier are like 8 little things that can go orange, Only 2 are actually lit up like its getting very low signal. The antenna itself is installed into my dash and probly doesn't have the grea