hi experts... i have done the upgrade but when i start the navigation i can see only the pointer and no maps!!! if it was a problem with the DVD unit then it wouldnt be able to read the upgrade CD.... tried other working map DVD but still only the pointer no roads....
advice :-)

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2008 BMW X5 4.8i
Navigation
Bluetooth
Rear Entertainment
Aerodynamic kit
DVD, CD, TV
Projection