Picked up my X5 a few weeks ago and the dealer told me that if I used a non-compatible phone (one not on the BMW approved list) that I could damage the whole communication system and that BMW would not replace it. Is this something that could actually happen by using a non-compatible phone? I have Sprint and apparently there is like one or twi phones that work correctly with the system. Sounds weird to me...

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2008 X5 Sapphire Black 4.8