Like some others, I have mine under the steering rack on my b4. I too pig tail it around a thin driver, then stretch it the rest of the way to the receiver. Yes, the wire's stiff, but I make sure I'm not redoing it too often. If I move it to another car I'll just retighten the existing wrap around a driver. Haven't had it fail yet, but once a transponder makes it's way into one of my cars it stays there unless I replace the chassis. We race 3 cars, so have 3 hybrid transponders. Can't comment on the longevity of the wire for those that move them from one car to another between heats.

Mike