Apparently some researchers in china build a radio relay that can bounce a car remote signal from a pretty far distance to “unlock it” and in some cases allow the person to drive away for $11. OK thats great, but where can I get one of these $11 radios? ($22 for a pair). I did a quick search and didn’t turn up an designs so it must not be out yet.
https://www.wired.com/2017/04/just-pair-11-radio-gadgets-can-steal-car/