Quote Originally Posted by Ruiner
You beat me to it. Yes, the "jammers" that are sold don't work despite the urban legends...
there are some that work, they have to be mounted up in the front and are marketed as "garage door confirmers" or something like that and aren't tied into a radar detector. when they get hit by radar they send back a signal and light up a light for 5-10 seconds while you slow down, then its disabled...5th gear or someone did an episode on them and tested them all out