I have FRED devices for sale. They are hand made of styrene and have a clip on the back and batteries installed so they can be mounted on different cars. The price is $15 + $2 shipping in the USA. I’m willing to ship outside the US but the cost may be different. I’m willing to do different colors as well. If you’re interested drop me a line. Updated the post with the new FRED device pictures. Handle is different. Body is a tad smaller and the batteries are easier to remove. Overall the FRED is stronger too. Thanks, Terry



  Anyway, it must have been left on by accident 'cause it doesn’t work any more 
  I opened it up as suggested to change out the batteries, but silly me I didn’t pay attention to the polarity.  Do you gave a pic of the batteries before closing up the end ? Or can you describe which polarity goes toward the switch side?