http://http://www.jenoptik.com/cms/p...cd_gb.pdf?Open
Please read d manual I'm quiet convinced it was this 1 due to the way the k bands were bouncing etc and the amount of cars travelling at time of encounter after reading manual you will see how nice and snug it will fit in the back of a SS commodore sports wagon for those who still don't know what I use the Bel STI-R PLUS & the ALPriority Triple and its great as u can download your police data of when u receive a encounter telling u speed gps location etc etc etc