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The question you asked have already been replied many many times...
BTW
- to update firmware just open door, insert key and turn to have board monitor on;
insert cd into unit (do not close or touch anything in the meantime) and wait...it will take less than 5 minutes. After upgrade remove the cd (it will aut eject) I did it really many many times in order to test my stuff;
- to use DVD just put the dvd into the unit and it will work. If you want to implement additional function...study the threads
WHAT I WROTE IS VALID FOR MY X3 NAVSYSTEM BASED ON MKIV UNIT
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I could show my BMW but I prefer to show my wife boobs...but, sorry, only by pic.
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