I have installed the 8Gb memory version of this unit about 10 months ago. You will need to remove some plastic framework to get the unit to fit, but I believe it is all worth it. You do need to remove the MID or relocate it. I have read some shifted it to the glovebox, however I fitted mine in the space occupied by the navigation and or cd changer in the left rear (not fitted in my X5). I was able to find the relevant power, ground and buss wiring. I did not have DSP. I fitted a reversing camera at the same time, and also added a wifi usb modem to the power outlet near the glovebox. The unit connects on power up to the modem. I run a dashboard overlay on the android which gives speed, weather, basic gps info as well as short cut icons to the apps I run routinely. Also came with gps program, but I prefer google mapping as I am internet connected. GPS antenna fits perfectly on top of dashboard speaker. I also ran an external microphone and fitted it behind the factory slotted panel on the overhead light panel. Phone call speech quality is my only real complaint. The external mic stays in parallel with the unit mic, which is physically on the wrong side for us living down under and driving on the right hand side. Phone call speech reception is fine through vehicle speakers. Aussie dollar makes the units more expensive for us now, but 10 months ago it wasn't too bad. 16 Gb is a definite requirement as I have had to delete some apps I would like due to lack of base memory. Hope this helps anyone considering.