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      08-26-2008, 11:05 AM   #50
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Originally Posted by mhaas View Post
but when you order your car with the business radio for example you can replace it with a different radio and buy a DIN-fitting from BMW. So its still possible but not as easy as in an E36 or Z3.
I don't think this is "plug and play". Can you change it without loosing the memory key functionality ? Can you change it without loosing the controls from the steering wheel buttons ?
With a "plug and play" communication interface, a standard communication mechanism must be specified between a car and a radio, and you could plug another radio without loosing any of the existing functionalities (if the radio provides it but, with a standard interface, there would be no reason the radio manufacturers don't implement it, because it could be used on all the different models of cars).
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