Sadly, your last senstence sums it up best! Even if there's no apparent hacking, 90% of us have found at least some wire hacking in our cars somewhere at some time - the cars are old enough to have it, and since they were and still are favored by teens, there's no telling what you'll come across.
{no disrespect meant to teens - but you must admit, compared to us old folks, you guys typically tend to take short cuts. 30+ folks are not used to instant gratification - ie video games - 30 under folks have had it bred into them - I know - I have 5 teen boys!}
Oh God - I just reread that - somebody SHOOT ME!