I have always wanted satnav in my x5 .I wish i had spec on ordering but didnt on enquiring at local dealer about retro fit i was told no way you req new dash etc etc ,Then i find x5 world it seems it can be done and has been there are oem kits available so it must be possible,Next problem i am not brave enough to tackle the job but iv found a guy who claims its easy and will undertake the whole project 2hrs ? but is pushing me to have mk3 and 16.9 with radio/tape .I asked can i have with cd up front and was told not available in x5 only e46/3 series ?? .it seems some members claim he is ok and then i was warned he uses rover mk3 cd drive that cant be updated item is locked what is your opinion ? surely i could have what i want mk4 and cd thanks for any help