If anyone is interested, the install should be the same as on an X5 e70 model. (X4 seems to have a similar overhead console)
I did the overhead install on my 2012 X5 without a problem.
steps below (pic were removed..) scroll down to middle
http://www.xoutpost.com/bmw-sav-foru...tor-e70-5.html
There is also kit from Valentine 1 called the Savvy which allows you to connect directly to your OBDC port under the steering column.
Savvy | Valentine One | Radar Detectors
P.S. posted here because i will be purchasing an X4 M-sport pks, carbon black soon.