Insanity,
We are trading in a POS car (brand to remain anonymous) 2006 model tomorrow that had a fiber optic network that connected most every safety and electrical system in the car. They manifacturer called it on the "bleeding edge" at the time it was made. We had many instances of ghost signals on the fiber, causing all kinds of gremlins, like the radio speaker's being automatically muted when not wanted for example. I hope the techonolgy has been perfected since then because in 2006 is was and is to this day a POS. Just my two cents...
Rhody...
The car was returned to the dealer "dozens" that's right, dozens of times under warranty, and no amount of tinkering/testing and replacing either the fiber or what it was connected to ever fixed the problems, enough said.