Guy i work with uses a radar detector, he read recently, mounting the detector sideways instead of horizontally actually eliminates those automatic door false alarms you can get. Has tried it himself with a sideways mount he bought off of ebay and reckon's it works a treat... Don't know myself how usefull this imformation is or how acurate as i'm yet to delve into my pockets and invest in one, but if it helps, good o