love the garmin radar its is a mirror for my ears. it is great not having to look in the mirror as much and its fantastic hone I need to turn left when the radar says clear I look in the mirror and then move over. saved my life once I was all the way to the left in a lane getting close to turn turn left with a line of cars behind me when a idiot doing 60 passed everyone in the opposite lane I think the gamins sound made me hesitate.