[rebelde]

I wish Motorcycles would emit some "noise" in the radio spectrum that says "Motorcycle over here!". My car gets the signal and does ... something with it. (Kids' shoes, too.) Not a perfect solution, but better than what we have now.

[_carbyau_]

Different take! I like the idea but have concerns over adversarial abuse - mainly because you've been vague over what it does.

But I guess a beeping noise in the car stereo to indicate direction of the [thing] would be ok.