Any update on this? I just got a 2015 Denali and was looking into upgrading it. Im extremely new in this field and program for school and work (computer engineer). Was curious as to what was required to get into the development world and whether or not it required a gm Bosch acdelco interface. Searching on Google it's been impossible for me to find an hmi 3.0 and was curious to see if this would integrate device projection better with the digital screen cluster. That seems to be the biggest thing holding me back from doing the upgrade. I'd hate to spend all that money and barely have the integration into Android using the control interface on the steering wheel. The internet seems to have the hmi 2.5s all over the place. What is the best way to tell if one supports io6 (GPS nav) and Bose amplifier system? Once again sorry I'm very new to this and still learning everything in the past day or so.