a radar detector. but got caught (it was coming)
Move to WA. They aren't illegal here. Been pulled over twice since I've had it in 3 years and both times the cops have looked at it on the dash. Conversation went something like this:
Cop: "I see you have a radar detector there."
Me: "Yep, saved me from a few fines."
Cop: "On your way then."
Not that I'm condoning speeding, And no, it doesn't encourage me to speed, but my only speeding fine ever was for doing 66 in a 60 zone. And this was because they put the camera at the bottom of a hill. (6-9kph over is a $75 fine in WA) the only reason I have it is to avoid any more of these.