Same problem happened last year and they replaced the entire DVD changer.
Replaced one had worked fine till last week, and now it happened again.... What the heck..
I couldn't even get my 6CDs back last time... It really sucks..
What would you do?? just go to dealer and ask for replacement with the cost of 6cds again??

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2008 X5 4.8i Black Sapphire/Black perforated int./Dark Bamboo wood trim, [w/ all factory options except rear DVD system]
+ aerodynamic kit/stainless pedals/illuminated door strip/3M Color-Stable tint/LED license plate light/Thule's 91726 snowboard carrier.
2006 X5 4.4i, Titanium Silver/Black int./Anthricite Maple(traded)