This is a common question and the answer, unfortunately, is no. Unblocking the TV is only available in MKI navigation units. Your unit can be modified by several 3rd party companies including Nav-Tv.com. Check out their capabilities at http://www.nav-tv.com/bmw.htm
(see item #4) I have used them twice, for a 7-series and Mini and they are reliable and VERY fast.