Originally Posted by John Tanglewood
Can you also explain how the entertainment works. And specifically if you know whether it will void any type of dealer warranty?
A dealer or BMWNA can say ANYTHING voids a warranty. There are provisions to protect consumers and manufacturers from car makers blanketly saying everythign voids the warranty but 9 times out of 10 they'll have more money to fight the fight and you'll just end up more out of pocket.
Basically, if you're truly worried about any part of your warranty, don't mod anything until the warranty is up.