I apologize if this has been stated. I'm not at home right now, nor have I seen the Nav HU in question. I just found a great deal to upgrade my standard Non-Nav HU from my 2008 STi to a 2011 STi Nav HU. I'm hoping someone has done this already, and could help me out. Again, I apologize if this has been asked before. I'm looking at getting full functionality and also swapping the steering wheel to get the other Bluetooth controls not offered on my STi since it doesn't have Bluetooth. If this is more work than needed, just let me know and I'll upgrade to an aftermarket unit. Really would like to keep it OEM though. Thanks in advance to anyone who helps out!